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(1)Floras. Mi.cer[e. Pacific. the. of. Side. Central. of. Japan. (Ⅰ)∼. Flora. Inkyoyama By. Kimihiko. IntrodⅥ.ctiom Miocene. Pliocene. to. distributed. Aknovledgements. and. fossil-bearing. Paci丘c. the. on. OZAKI. side. developed in the Kani-Mitake, mainly sediments basins in the Akechi part of Gifu southern for. 1ogists nami. many. group.. vertebrate molluscan, basin In the Kani-Mitake by. characterized sediment Hiramaki the mammalian. trine as. band,. the in. facies. Toki. the. lower. the. by. characterized fact known. NAGA). in. group. part. that. an. fossils. marine. from. the. and. the. some. and. by the. On. MizulactlSknown. the. other. lignite-bearing二. upper. district,. geo-I. a. are. is. It. is. and. part,. fossils.. plant. bill, Izumi. lnkyoyama. the. a. welレ. (ToE･U--. tabatai. of Paleoparadoxia. skeleton. perfect. almost. found. was. is represented facies in marine. basins. two. by. fossils.. plant. to. called. represented fossils, which. many. and. are. and. IS. group. mammalian. many. fauna,. other. rich. the. lwamura-･. and familiar. are. fossils,. plant. and. Miocene･. the. TokトMizunami, Prefecture. ben. to. known. Especially. Japan.. Central. of. been. have. sedimentes. part. northern. of￣. City. fossils. plant horizon. the. of. writer. expressis. Geological. the. about his. and. also due fessor Masao. Professor. to. are. for. sity. Junji kind. southeast. during. supervision. Shogo. the. Takahashi. ltoigawa. the. of. during. Institute. the鮎1d. of. work. Earth. Sciences,. his. of. continuous. AcknowledgementsInstitute. of the lnstitute, Yokohama. for. and. for. study･. indebted. the. Shikama. Tokio. same. of the Botanical He is also suggestions･. kind. Professor. ･University. present. of. hill･. the. of to. gratitute National. Kitagawa. their. help. 0.5km.. Yokohama. institute,. encouragement. the. hearty. above･. at a pointト2m･ collected a hill, and at lnkyoyama point were. article. in. Paleoparadoxia horizon. paleoparadoxia The. in this. reported. National. Univer--. for. University of the. Pro-. Professor･. Assistant. to. Nagoya. his suggestion. to. and. his･. stratlgrapbical-. problems. During advice he. the. this. professor. of. unive,sity, Tooru. of. suggestions. and. takes. course. Onoe. on. the. present. from. paleobatany. his. to express opportunity Akita University, Dr.. Dr. of. Hidekuni the. Matsuo,. Geological. the. work. the. cordial. Professor Survey. of. thanks Tanai,. Toshimasa of. Japan.. was. writer follo面ing. Kanazawa. :. glVen. gentlemen Dr･ Kazuo. Professor. of. University,. Valuableto. whom-. Huzioka･L Hokkaido-+. and. Dr-.

(2) K.. General The. localities. two. ･'approximately -as. in Fig･. indicated. sheet. hkyoyama the. 1･. The. margln. southern. of. tailroad. 1. is. in. fossil.. )unior-highschool. grounds.. KAbLAZAWA. station. Japanese. of the. corner. Locality. are. collected,. Paleoparadoxian. the. Izuml. the. Of. were. Tokishi. the. southeastern. (scale 1:50.000). for. fossils. plant. NNE. is in the. area. is famous. which. 750m.. and. Area. the. of the. where. NNW. "Minokama”. map. Geology. from. 1 km.. OzAKI. the. hill. called 2 is. Locality. on. _”(いヽ 1'O KY8. > I)A GgYA. ､ヽ､､い＼､､ヽ. OSAKA. ♂. ＼=_勢∠ ZU誓とHJ.U岩LoR'H'6H. ヽ､＼ヽ. LOG.. 1. I. ＼. YLA”A. /帰MKHToL. ･＋” ′. 昏. _J'T ′ ///. 畠. /,. /ToKISHl SW10N. }). JIll＼､､tllド. ㌔. //. 午ら. ヽ. ＼. ＼＼. ii ＼. 令. +. Oh. 1･. Fig･. Miocene. The the. 500m. sections. rocks,. are. exposed. The `taining. molluscan. at. the. Togari many. are. facies,. base. area. City. dipping. are. The. the. upper. in. are. assending. lnkyoyama. consists calcareous. mainly. SE. divided. resting on into the. order.. Columner. and. 2. Pre-Tertiary. overlying. 4. showing. 5o-6｡. sediments. in Fig.. shown. Toki. plants.. unconformably. present,. of. facies tabular. of. ≠＼. and.grey massive ･of conglomerate fossils and pumice Bne Patches; At. observed･. part. fossil. Yamanouchi.facies. and localities. composed. Containing ture. granitic. Tsukiyoshi is. the northern localities of. in this. 0. 1. basement.. Togari, of the. The. of. sediments. Pre-Tertiary. Tsukiyoshi,. Map. 7. meters. of. tuffaceous. granitic. sandstone. struconion and Tsukiyoshi facies is. joints. the. bill. of. concretions. massive. and. tuffaceous molluscan. I. sandstone fossils.. con_. From.

(3) Miocene. ユnkyoyama. Floras. of the. hill. Izuml. Central. of. Junior-high Loc. 2. 1. Loc.. Side. Paci丘c. (Ⅰ). school. VVV > ヽ′. Japan. V V. V. 丘ne. >>. tu序. ヽ′. ●. ヽ/. ∨. .P. レ′ ㌧′. ＼/. レ. ＼. ＼/. ヽ′. >. ＼. ∨. a V. coarse-grained. 巨二∃tuffaceous. >′. 聴. ＼/. >. ∨. ＼/. >. ∨. 二又. >. ∨. sandstone. O､. >. 丘ne･grained. ＼/>. ＼/. >. ･tuffaceous. ＼. sandstone. ＼/ルJ. 巨頭. calcareous concretion. [亘]. sand-pipe. ∨. Om ヽ/. 墓醗 >. >. molluscs OnlOn. [二重]. st ructtlre. 5m. ＼. y､,軟y y-,.'蚊〉/. Y'E､l.Y. fossil. 回. ∨. ＼/. fossil. I[亘二]. plants. Y. Desmostilid. 】Om. [二重コ. fossil. Fig.. Stratigraphic. 2.. Relationship the. of. 七he upper was. skeleton ニSChool, The. Togari. of the. part. collected,. some. the. of. and. Yamanouchi tuffand. .yellowish-white sandstone which Plant fossils were. facies. this. found. `7 conifers. in the. The. family. ･dominant. 3:=genera.. is. The. by. Pinaceae. a. to. tuffat. the. of. i;hamaecyParis,. the. of. fossils. occur. and. composed. of. cross-laminated tuffaceous. medium-grained burrows of benthonic Inkyoyama locality.. animals.. Flora. the. as. shown. in Table. 1, comprising. 3 conifers 4 angiosperms and of which fall under 15 families 22 genera. 一and 4 genera, followed by Legminosae with have except. to. forests as. Carpinus. two. or. one. is considered. Quercus. at. Paleoparadoxia. obtained.. 27 species. species,. transitional. IzumllJunior-high. is. many. families. single. lnkyoyama且ora. ･warm-temperate. Most. species. remaining. represented. -each. Tbe. angiosperms,. new.. as. l･described. …are. 20. and. the. were. with. includes. lnkyoyama且ora. horizon. area. Composition Tbe. a. yellowish-white. massive. disturbed. are. hill. same. fossils. in. lnkyoyama. in the. the. plant. facies. localities. two. lnkyoyama且ora.. from. present. between. and. Acer. represented. by. Quercus be. in warm-temperate. leaf are. impressions, also found. Most. general. the. with. leaflets.. with. 3 speceis. with. cones. The. genera. plants. to temperate. but. are. zones･. bracts. or. of. The. of. plants.

(4) K.. Table. 1.. OzAKI. Systematic. list. lnkyoyama且ora.. the. of. Gymnospermae Pinaceae. Keteleeria. TANAI. ezoana. Pinus. TANAI. miocenica Pseudotsuga huziokana Tsuga. n.. sp.. n.. miosiebolidiana. sp.. Cupressaceae Chamaecyparis. n.. shikamana. sp.. Taxodiaceae. Cunninghamia. cf.. Metasequoia. TANAI. Protokonishii. (NEWB.). occidentalis. CHANEY. Angiospermae Monocotyledoneae Gramineae Phragmites. cf.. sp.. Cyperaceae Carex. cf.. sp.. Dicotyledoneae. Bettllaceae Carpinus. KoN'NO. subyedoensis. Carpinus. sp.. Fagaceae KRYSTOFOVICH. Ouercus. praegilue. Quercus. subuariabilis. TANAI. Quercus. Protosalicina. SuzuKI. Ulmaceae Ulmus. sp.. Zelkova. KovATS. (ETTING.). ungeri. Eucommiaceae. Eucommia. n.. nipponica. sp.. Magnoliaceae Magnolia. TANAI. miocenica. Lauraceae. Cinnamomum. lanceolatum. cf･. (UNGER). Legminosae Pueraria. tanaii. Milletia. n,. sp.. IsHIDA. notoensis knorrii. Podogonium. A.. BRAUN. Eupborbiaceae Mallotus. protojaPonicus. n.. sp.. Buxaceae. Buxus. protojaPonica. TANAI. and. Aceraceae Acer. tokiensis. n.. sp.. Acer. subpictum. Acer. cf. nordenskib'ldi. SAPORTA NATHORST. ONOE. HEER.

(5) Floras. Miocene-. lnkyoyamaflora. the. constituting. Paci丘c. the. of. is. species. total. herbs. 8 per. Considering. these. two. 片and. Growth. The. four. (I). 1.. IIabit from. 20. that. shows. trees. and. shrubs. living. the related. trees. make. up. make. up. 15 per. Assumed. 2.. lnkyoyama且ora. the. percentages,. Miocenefloras. Table. Table. assumed. table. small. Japan. 77. per cent,. cent.. like other. ･arboreal. 2.. taxa,. in. lnkyoyama且ora. the. of. in Table. given. the. of. ･cent. habit. growth. Central. of. listed. are. Assumed The. Side. was. predominantly. Japan.. of. habit. growth. the. of. lnkyoyama. plants,. Trees. Keteleeria. Quercus. subvariabilis. miocenica Pseudotsuga huziokana. Quercus. Proiosalicina. Tsuga. Zelkova. ezoana. Pinus. Ulmus. miosieboldiana ChamaecyParis shikamana cf.. Cunninghamia. Metasequoia Carpinus Quercus. ni朗)onica. Magnolia. Proiokonishii. miocenica. Mallotus. protojaPonicus. subyedoensis. Acer. tokiensis. sp.. Acer. subPictum. Acer. cf.. Praegilva Trees. Small Cinnamomum. nordenskib'ldi. Shrubs. and. Milletia. cf. lanceolatum. Pueraria. ungeri. Eucommia. occidentalis. Carpinus. sp.. notoensis. Buxus. tanaii. protojaPonica. Eerbs cf.. Phragmites. Numerical The. species. 93.9. per. species,. making cent. making is. ･cent. and. of The. borders. a. the. by. cf.. lnkyoyama. 45. total. cent. per. Phragmites. sp.,. and. are. each,. of. a. with. megaflora in Table shown. shikamana. cent. per. species. Protosalicina,. specimens. cf. Cunninghamia four. 3.. on. 294. Tbe負rst. 15. to. combined is the most. representation. these. is based. constitute. predominant Pseudotsuga. counted, of 9.5 per. cent.. These. cf. Carex 25 per about. protokonishii,. species. make. up. Carex. sp.. lived. specimens.. that. assumes. writer near. about. dominant. one. as. Chamaecyparis. total.. up. Quercus. Judging 地e. the. of. than. more. up. Inkyoyama. the. localities,. two. sp.. Representation. of. from. specimens. ,huziokana followed rare tsp.,. appraisal. quantitative. determined. Carex. cf.. sp.. locality from. the forest. Phramites. sp.. and. on. the. forest. 1. nature associated. of. these. with. species, many. ever-green. conifers.. oaks. luxuriated. in.

(6) K.. Table. 3.. Numerial. OzAKI. the. of. representation. lnkyoyama. 1. Loc.. Chamaecyparis. tokioensis. Pseudotsuga. Quercus. sp.. Protokonishii. subvariabilis. Quercus. 44.6. 28. 9.5. 20. 6.8. 20. 20. 6.8.. 17. 17. 5.8,. 16. 16. 5.4.. 9. 9. 3.1. 8. 2.7●. 5. 5. 1.T. 4. 5. 1.T. 4. 1.坐. 4. 1.4_. 3. 1.0･. 3. 1.0,. 19. 3. (leaves) (scale). 4 1. Praegilva. Quercus. 1. sp.. Carpinus. subyedoensis. 2. (leaves). 2. (bracts) Buxus. protojaPonica. 4. Tsuga. miosieboldiana. 3. Zelkova. 3. ungeri tqnaii. 3. 3. 1.0ン. miocenica. 2. 2. 0.T. 2. 0. 7'. 2. 0,ア. 2. 0.ア. Pueraria Pinus Acer. cf.. nordenskib'lidi. 2. Acer. cf.. tokiensis. 2. Acer. 1. 1. occidentalis. Carpinus sp.. Eucommia. nipponica. Milletia. 1. 1. 1 1. cf. lanceolatum. Podogonium. 1. 1. 1. 1. knorrii. 1. ProtojaPonicus. 1. tokiensis. 100. 1. 294. Totals. Notes:ロnless. 3. 4.. 1. 1. notoensis. Mallotus. 1. 1. miocenica. Cinnamomum. 1. 1. sp.. Magnolia. Acer. 2. subPictum. Metasequoia. Ulmus. cent. 131. 1. ezoana. Quercus. Per. Total. 28. cf. Cαγβ∬sp. Keteleeria. 2. 2. ♪rotosalicina. cf. Cunninghamia. Loc.. 129. (foliaged shoots) (cones). hujiokana. cf. Phragmites. species.. otherwise. stated. the. Systematic. organs. recorded. are. leaves. or. lea且ets.. Descriptions. institute Yokohama of the fossils are stored in the gological The by University. shown of the fossils are registered numbers ing GYNUICMP: Geological Institute Yokohama abbreviation:. Nationa‡. All. University.. the. follow-National.

(7) Miocene. Floras. Family. 1961,. Geol･. &. Remarks:. There. in the. ezoana. winged. mens are. with. Occurrence:. length. many. leaves. This. species. was. Sci･. Ann.. Kyoto. Univ.,. 4, 10.. which. Keteleeria. to. referred. described orlginally Mioceneflora of Hokkaido was. 1963･. in. added. The. its width. with. in Formosa. growlng. Fac･. Mem･. p. 251,. 80th. Surv.Japan. pl･ 1,丘gs.. the Middle. compared. Hypotype,. GYNU-CMP-1061,. Pinys. and. present. (about. of by specト. 2 to. 2.5cm). China.. southern. TANAI,. miocenica 1963, op.. 1961･ 101,. °it., p.. Remarks:. A. opt. cit･,. pl. 3,丘g.. the. resembles. P･. modern. TANAI. 1,丘gs.. 3-4) pl･ 1'丘gs･. 253,. p･. 5-7･. TANAI. N.. and. SuzuKI,. 4.. fascicle. two-needled. 1067.. miocenica. (Pl.. species. 1970,. 60-61,. p･. Geol.. ll,. 4, γol.. ser.. Inkyoyama.. Collection:. Pinus. 1,. no･. Univ.,. 1963,. IsHIDA,. of leaves. description. Hokkaido. SロZUKI,. 1-2･. from. scales. short relatively to K. davidiana. similar. and. 37,. 1-2). Sci･ N.. relatively locality･. cone. and the. and. are. lnkyoyalpa. seeds. Tanai･. MineralリVOl･. 1,丘gs.. Fac･. Jour･. 16, 40, 41･ TANAI pl･ 1,丘gs･ Mem･ Publ･･ 99, p･ pl･ 1,丘gs･ ser･. (Ⅰ). TANAI. ezoana. (Pl. TANAI,. Japan. Pinaceae. Keteleeria. ezoana. Central. of. GYAINOSPER加AE. Class. Keteleeria. Side. Paci丘c. the. of. belongs. thunbergii. to. the. PARB.. Pinus. and. P.. This. miocenica.. densijiora. SIEB.. and. ZuCc. Occurrence:. Inkyoyama.. Collection:. Hypotype,. GYNUICMP-1058.. Pseudolsuga. huziokana. (Pl. DescriPtion: wide,. with. round. to. swollen. a. Leaves. The The. and. Japan. present. Wilsoniana and. the. Occurrence:. present. above decurrent, base. slender species. HAYATA.. latter. in. the the. Inkyoyama;. and. margin. most. former. mountainland. sp.. 5｢7). slightly falcate,. j=0.7mmwidth;. of. part.. P.. groove. emarglnate,. slightly. Remarks:. basal. wide. rather. end. linear,. 1,丘gs.,. n.. long. 1.8-2.Ocm. prominent. slightly. ±1.5mm. and. beneath;. midrib. twisted,. with. apex. small. entire. leaves. is. resembles. assorted. from. P.japonicd. in limited growing Taiwan. of. Abies. its with -(SHIRAS.) BEISSN.. parts. of southem.

(8) K.. OzAKI. .8. Collection 1067,. Holotype,. :. 1068.. Tsuga. Leaves. DescriPtion: 1.2mm. -part,. at. ,cuneate. with. an. with. 書down. at. wide base. part, slender. angle. 60-80. degrees. From. the. referred specimens Miocenefloras Japan, and among of -in T. miocenica with somewhat related ･above. lamina. as. T.. in. seen. Occurrence:. a. sieboldii. those but. lateral. _pointed. appressed, points; 8-10 scales form 8-12mm. lo咽and. branaceous. most. ･question growing REED.. in. shikamana nora in the. upper. small Cupressaceae. with. those some. and. in Taiwan, leaves,. is the. Japan.. and. second. The. Mioceneflora. which. record. of. C1. of having. ligulate. present. by. half,. globular. slightly. irregular. striations. triangular. obtuse. in. 6-8mm. base･. irregular. radial. the. ChamaecyParis. cones. upper. mem-. two depressed cones and its large exserted protrusions. Cupressaceae, of. facial. or. decussate,. an. with. the. hexagonal. or. with. the. outside･ branchlets. resemble. Japan. the. be. pairs,. many丘ne scales. in. part;. outline. covering. tapered. seems. or丘ve. ones,. rhombic. to. swollen. in. almost. pentagonal. each. on. growing. growing. A.rsiventral. sides,. the. Among. with. middle. spatulate. identical. are. cone.. at. maCrOprOtruSion Innumerable. Remarks: band. in number, in fundibular wide. the. on. running. the. but. in four. at. wide. leaves. in diameter,. j=1.5cm. cone. 3-4mm. about. retro鮎Ⅹed, in lower half, rapidly. decurrent. sp･. 12-20). S-shaped･. leaves. GYNU-CMP-1057･. n･. shikamana. dorsiventra1. decussate;. and. opposite. ･oblong; size and. of. Cupressaceae. Branchletsflattened,. Description･･. acute. length. shorts. Japan･. Paratype,. (Pl. 1,丘gs･. with. it by. are. specimens. present. from. in. GYNU-CMP-1056;. Holotype,. ChamaecyParis. leaves,. mentioned little fossils of Tsuga. a. the. distinct. growing. Family. tips;. is. species. as. petiole. There. bending. length,. lnkyoyama.. collection:. leaves. lamina･. characteristic. Tsuga･. to. CARE.. the. in. apical. tip･ widely. at. obtuse. to. at. wide. midrib･ lmm. of about. skewing. having. 1･8mm. long, at. petiol. are. the. 10mm. and. leaves. sp.. 9). one-grooved. short. Remarks:. 8,. 1,丘gs･. spatulate-linear,. basal. n.. miosieboldiana. (Pl.. ,on. 1065,. GYNU-CMP-1061,. Paratype,. YNU-CMP11064;. the. of. species U.S.A.. obtusa var･. 0btusa. genus. resembles. (LAMoTTE,. of. leaves･. cone-scale･. ChamaecyParis C･ gilmoreae 1936,. and. of in. cones. (SIE･B･and Zucc･) ENDL･ formosensis (HAYATA). lateral. slgmOida1. projections. leaves. present. now. pl･. rather. long. ChamaecyParis of the. Tertiary. LAMoTTE. 3,軸s･. 4-5)･. from How-.

(9) Floras. Miocene. have. they. ever. The ･about found. cone. no. conspicuous in. occurs. 2-3mm. in length,. a. attached. cone. scale-like resembles. Chamaecyparis. the. that. cone. the. but. associating to. the. has. is covered. footstalk. 1070,. GYNU-CMP-1067;. Cunninghamia. cf.. Paratype,. GYNuCMP-1060,. protokonishii 1,丘gs.. TANAI. 10, ll). few. little fall. characters growing. of. and. have. characteristic dentation. specimens丘ne leaf in the single. resemble in Taiwan.. Occurrence:. p･. 12.. 1963,. TANAI. Remarks: ･cidentalis.. Japan,. but. 1059,. Geol.. and. N.. Surv. SuzuKI,. Incomplete This rare. Occurrence: Collection:. 1963,. 1,丘g.. are. length. variable. part. attaching. to. is. There. margin.. above mentioned C. konishii HAYATA. op,. of the. lnkyoyama且ora.. Inkyoyama. Hypotype,. GYNU-CMP-1055.. 1061,. 10$3,. 1066,. 1067.. CHANEY. 21). 80th. foliat. single is one. species in the. Japan.. 1060,. (NEWBERY). occidentalis. 1951, Trans. (NEWB.) CHANCY, occidentalis 丘gures. TANAI, 1961, many op. citリp.. HuzIOKA,. locality. p.. but to. especially. GYNU-CMP-1049,. (Pl･. 225,. 187,. no.. Inkyoyama. Hypotype,. Metasequoia. Metasequoia. have. CunninghamLa, and. Rep.,. Inkyoy･ama. wide reclinated is seen on leaf. living. Cunninghamia. most. Collection:. leaves. single. Cunninghamia. (about I.5-2.5cm),. ･a. from the collected These protokonishii. specimens. Many. a. 1063,. ONOE. and. TANAI ONOE, 1961, Geol. Surv. protokonishii and Japan 1. IsI-IDA, 18, pl. 1,丘g. 1970, op. °it., p. 63, pl. 2,fig. 3.. In. show. species.. Cunninghamia. twig.. most. Taxodiaceae. (Pl.. to. which fairly. 1071.. Family. related. with. Inkyoyama. Holotype,. Remarks:. of. hitherto. yet. not. Cupressaceae. same. footstalk. short. of Chamaecyparis'cones. with. belong. on. writer the. foliages. many. C. (I). cone-scale.. The. branchlet,. Japan. is seated. and. it attached.. of. Central. of. on. condition. which leafy. foliages. and. Collection: 1069,. a. Yielding. Occ-･rrence:. 1066,. to. Side. projections. solitary. to. leaves.. PaciBc. the. of. Ann. cit.,. p.. shoot most. Am.. Phil.. 256,. 3,. Mem.. 104,. pl.. Publ. pl.. p.. 188-189,. 2,figs.. is referred common. Soc.. tree. N.S.. vol.. 丘gs. 1-3, ll, pl.. 13,. 40, 15.. 28,丘g.. 5-7.. to. in. Metasequioa the. Miocene. oc-. of.

(10) OzAKI. K.. 10. Class Subclass. ANGIOSPERAIAE MONOCOTYLEDONEAE. Family. Gramineae. cf. Phragmites 1,丘g.. (Pl. Remarks many. The. :. 触e. parallel. above. present. mentioned. they. characters, be. to. seems. run. referred Inkyoyama.. Occurrence: Collection:. to. Holotype,. 23). are. specimens. nerves. sp.. wide;. in丘ne. are specimens Occurrence:. Collection. present. paralleled. veins Carex.. to. referable. with. Holotype,. :. op･. cit･,. MAXIM.. A. in Japan, Collection:. p･. 118, 2,. materials,. midrib.. The. 3-5. present. Betulaceae. 1,丘gs.. Geol･. op･. cit･,. pl･ 9,丘gs･ 3, 8.. folded. These. Occurrence:. strong. slightly. leaf. Korea. China.. Hypotype,. Izuml. 25). Central. Shinano. 29,. pl･4,丘g･. p･. pl･. involucres. and are. Inkyloyama,. 24,. 6,9,10,15,. specimens and. KoN'NO. subyedoensis. 1931, 1961,. ONOE,. 6,丘gs.. Remarks: yedoensis.. KoN'NO,. subyedoensis TANAI and 74, pl.. fragmental. many. DICOTYLEDONEAE. (Pl･. 1963,. leaves,. GYNUICMP-1049.. Carpinus. p.. of the. Inkyoyama.. Family. 4･. part. 22) are. specimens. Subclass. Carpinus. basal. sp.. 1,丘g.. (Pl.. mm. and. from. Cuperaceae. cf. Carex. The. wide. Considering. GYNU-CMP-1046.. Family. Remarks:. decurrent. the especially Phragmites.. 1-1.5cm. leaf-margin.. their. along. fragmental,. all. very. 10,丘g-. are. similar. (by Honma),. to. 1042.. 6･. the. and. IsHIDA,. referable. )unior-highschool.. GYNU-CMP-1020,. TANAI. 10.. modern. to. 1pl. 7,figs. N. SロZロKI, 1972,. op.cit.,. Carpinus. subC. tschonoskii.

(11) Miocene. Floras. Pacific. the. of. Side. CdrPinus. Japan. 1王-. (I). sp.. 1,丘g.. (Pl.. Central. of. 26) ＼. Remarks: be. to. seem. This. spaced. rowly. to. and. curved. Carpinus,. referred Occurrence: Collection:. too`incomplate. From. upward. to. especially. Izuml. Junior-highschool.. Holotype,. GYNUICMP11043.. Family. Quercus. 1963,. 11,丘gs.. 1,. Remarks:. are. cit.,. p.. (Pl.. 2,丘gs.. and. characters,. to. be. laxij7ora BLUME.. 1926,. Ann.. 198,. Russ.. Pal.. 31,五g.. pl.. 6,. Soc.,. 7.. IsHIDA,. to. Quercus. ll,. p.. 1970,. 2,丘g.. pl.. op.. cit.,. 2ー. 78, pl-. p.. 5.. specimens. longer. relatively. it seems. 2, 3). referred. ar?. in Q. gilua distributing Taiwn. The fossil leaves. living. China. all. op.. 4,. Five. the. sembles Kor甲,. 2,. nar-. nervesムre. KRYSTOFOVICH. Praegilua. KRYSTOFOVICH,. Praegilva HuzIOKA,. leaves,･. Fagaceae. ･. Quercus. C.. its. but. secondary. these. living. the. describe,. to. fine dentation;. elliptic having. to. ovate. is. specimen. slender. and. Praegilua, zone. warm-temperate. from. Japan,メ. of. lnkyoyama且ora-. the gained have in the serrations. and. re-･. which. basal. part㌢. too.. Occurrence:. Izuml. Collection:. Hypotype,. Junior-highschool. GYNU-CMP-1005,. Quercus. 2,丘gs.. TANAI,. Quercus. subvariabilis 1961, op.. TANAI,. 1955,. cit.,. SciリFukushima and Q,払erCuS miovLariabilis Hu 15,丘gs.. 5,. Remarks:. ￠uercus and. veins.. rather Although. Occurrence: Colleciion:. Univ.,. The. stout. splneS. base. and. Japan,. 13,figs,.. 5-8.. Rep.. 1b3,. no.. SuzuKI,. 1961,. 7. 54, pl. 12,丘g. Palaeont. Sinica 1938,. pl.. Sci.. 8,figs.. Rep.. 3-5._. Fac.. Art. p.. 36, pI.. 10, p.. op.. °it., p.. 77, pl.. same. They somewhat shall. be. narrow. put. 8,丘gs.. spaces be. may. 2,. rI:. 3,. Castanea. resemble. almost. criteria Inkyoyama, Izuml Hypotype,. 1017.. 5). Surv.. specimens. in having. these. pl. no.. 1970,. present. cuneated. Geol.. CⅢANゼ¥i. and. IsHIDA,. subuariabilis. obtusely. baying. 6.. p.. 314,. 4,. 1016,. TANAI. subuariabilL's. (Pl.. 1015,. 1014,. for. S,er.;` vol.. miomollissima. between. referred space. further. school. )unior-high 1005, 1029, GYNU-CMP11003,. 1,. 6, 7.. to. secondary. and veins･. Q. subvariabilis between. discussion.. 1053,. lO54.. secondary. in.

(12) ユ2. K.. Quercus. OzAKI. (Pl. 2,丘g.. 2,丘g.. 13,. Several. smoothly. up. curved. apex, :acuminated BLUME growing. Occurrence. Hypotype,. :. and. Izuml. Junior-high. 14-16. in number,. Leaf. The. in the. pERT. apex. but. 2,丘g･. 6). wide. and. Holotype,. the. 86, 89,. 326.. p.. 71,. 5,fig.. pl.. 1963,. Paper,. 6.. SuzuKI, pl.. to. the. part,. marginal. Ulmus. the. GoEP-. carpinoides. secondary. veins.. 1972,. 1972,. 199,. and. 14, 丘g.. op.. cit.,. 32,丘gs. N. 2.. op.. Soc.. p. 322,. 113.. 1963,. 1970, 159,. Univ.. op.. pl. ser.. op.. Palaeont.. Soc. 80. cit., p. A, vol.. 8, 丘gs.. 2,. 4,. 15,. γol.. 4, 4. mos.. p.. Japan, 10,. pl.. 5.. no.. TANAI. 1-2,. 3,. nO.. ll.. 6-9, citリ. 1, 534,. no,532; N.Sリ. Japan,. 18,丘gs.. 5,. pl.. 15,丘gs.. pl,. 1-4,. 27,. p.. 45,. γol,. Soc.. UnivリSer. p.. 41,. citリP,. pl.. 1,. vol.. Japan,. MATSUO, 1965,. IsHIDA,. Hokkaido. Ungarn,. Palaeont.. SuzuKI,. ユour. Min. Co11リAkita Mus. Japan, no. 4, Sci.. Ges･ 1938,. Proc.. Trams.. pl.. Geol.. Jour, Geol.. Sci.. Jour. Fac.. KovATS. 7). CHANEY,. 1938,. 1961,. TANAI. 24, pl.. Arb.. and. 1951,. TANAI,. 9b.. Nat.. Eu. ENDO,. °it., p.. 10, p.. Mem.. 6,丘gs.. Remarks:. 9.. 61-8, γol.. 3.. HuzIOKA,. op.. HuzIOKA,. 1971,. basal. teeth.. resembles. 2,丘g.. 1865,. 1-6.. 1,. 16,丘gs.. 47,figs.. occurs. 6,figs.. pl.. p.. ZIOKA,. slightly. secondary. except. reaching. acute. of. base. straight;. degrees. (ETTINGSHAUSEN). ungeri. KovATS,. (ETTING.). ungeri. 丘gs. 1-12; pl.. 1020.. long;. midrib. with. space. (Pl.. 4;. 1010,. GYNU-CMP-1046.. Zelkova. 3,. base,. Inkyoyama.. Collection:. Zelkova. midrib. Q. salicina. to. related. 3cm. about. at midway,. serrated in. the. cuneate. widely. 1009,. of 35-40. leaf somewhat. differs. to. veins. school.. unpreserved;. Singly. Pro-. Quercus. sp.. an. present. shape. Occurrence:. pl･. Ulmaceae. 1.5cm. ovate,. margln. single Remarks:. 36,. p1. Korea.. 1008,. with angle divaricated occasionaly. dentation;. 9,. no.. with. closely. and. GYNU-CMP-1007,. asymmetrical; from midrib. arising. Japan,. to. are. regions. (Pl.. veins. identical. cuneate. of Japan. Ulmus. 屯Ordate. are. specimens. Family. Description:. Collab.. secondary. veins,. present. warmer. Inkyoyama,. :. Collection. secondary. The. etc. in. Geol.. 5-6.. leaves characteristic dentation, narrow-angled. in pointed. tosalicina. 1). Assoc.. Mom.. 1959,. 3,丘gs.. pl.. Remarks:. and. SuzuKI,. Protosalinina. ･Quercus. SuzuKI. Protosalicina. Hu-. 237, pl. Special 丘gs.. 5,. TANAI, and. N,. pl.. 333,. 1-4.. Three. frequently. leaf impressions in. the. Miocene. are. and. identical Pliocene. with. Zelkoua. localities. ungeri of. Japan.. which This.

(13) Miocene. species. Floras. Zelkoua. resembles. zones. warm-temperate. Occurrence Collection. Taiwan,. China. 2,丘g.. to. 13cm. about beneath;. the. its. along. length,. arising. in. spacing. irregulary. the. the. part. and. widest. veins veip,. middle. making. and lamina;. of. in. half. lamina. low. of. tapering.. about. right. angles. teeth. 3-4. serrulate,. number,.. 4=0-55. veins寸 degrees,.. distally. 3-4. veins. in. degrees, at. pro--. retroflexed. 5-6. interconnecting. tertiary. at. running. margin. opposite, at 70-80. middle,. loops;. and. arising. lower. the. many. of which. many. veins. wide,. straight, slightly. secondary. the. of. 7cm. about. slightly cordate. midrib. two. remaining. sp.. oblong,. base. base;. at. proximal. Hokkaido.. except. 1027.. n.. preserved,. unknown;. wide. toJ. 8). camptodromous;. 1mm the. upwards,. condary. apex. venation. curving. tertiary. incompletely. long;. 1026,. nipponica (Pl.. Leaf. temperate. growing. Japan. and. 13. (1). Eucommiaceae. Eucommia. DescriPtion:. Japan. MAKINO. GYNU-CMP-1025,. Family. bably. of Central. school.. Junior-high. Hypotype,. :. Side. (THUNB.). serrata. of. Izuml. :. Paci丘c. the. of. lcm. per to. the. se-. in.. midrib. lcm;. per. with_ of. petiole. unknown.. Remarks:. The. margin,. rulate distal. part. specimen. This. cribed. from. secondary. fossil. aspect. of. of the secondary Occurrence:. from. the. veins,. of tertiary. phase. Holotype,. widely mLOCenLCa.. desand. E... size.. Magnoliaceae. Hu. miocenica TANAI. and. and. TANAI,. nipponica. This. distributed. 1961,. leaf in. CIIANEY, SuzuKI,. N･. 2,丘g.. 1938,. op.. cit.,. and. cit.,. citリp･. p.. CIiANEY. and. 9). op.. 1963,, op･. is generally. Japan. Hu. miocenica (Pl.. Remarks:. central_. GYNU-CMP-1027.. Magnolia. Magnolia. in血e. general distal part【. the. larger. and. ser-･. in. Japan, with. its. present in. (NEWB.) BROWN (BROWN,･ 1962). assorted veins. The. growing. H､okkaido. of but. veins,. Family. 3-5.. many. veins.. America. Miocene. the. by loops. Inkyoyama.. Collection:. Magnolia. veins,. t､ertiary. of. North. western. of secondary. and. secondary. aspect. OLIVER ulmoides E. serrate resembles. somewhat. described. of dentation. and. Eucommia. with. Eucommia. with. leaf. the. of. veins,. Paleocene. the. TANAI. japonica. state. agrees. is identical. specimen. extending. of most. China.. present. 332,. similar southern. pl.. to. p.. 44,. 20,. pl.. 126-127,. pl.. 21,figs.. 1,. Magnolia. Korea,. and. 丘g. 2;. Pl.. 21,丘gs.. 21,丘gs.ト3. 9,. 10,. kobus. relates. DC. to. is. which Magnoliar.

(14) K.. 14. Occurrence. Inkyoyama.. :. Collection. OzAKI. Hypotype,. :. GYNU-CMP-1033.. Family cinnamomum. Lauraceae. cf. lanceolatLum (Pl. 2,丘g.. lanceolatum. ･Cinnamomum. IIEER,. (UNGER). 6-ll. SHIKAMA, pl. 93,figs. fossil ENDO, 1955, Icones op.. cit.,. 201,. p.. Remarks:. The. 10). 1856,. Jour. Japanese. pl.. Tert.. Flora. Geol.. 1938,. Soc.. fragmental. present. triplinerved vernation. JCharacteristic in SIEB. widely distributed Izuml. :. Collection. Junior-high. Hypotype,. :. pl.. Only. knorrii. leaf. is similar. The. present. and. specimen. is. apex. with. is. warmer. knorrii 2,丘g.. Collection:. Hypotype,. Fl,. ter,. op.. citリp.. in. the. by. Remarks: Milletia A. 血e. GRAY.. lsllIDA,. The. Occurrence:. in its C. and. p.. pl. 134,figs.. 114,. 15,丘gs.. 7-ll.. is referred of Switzerland.. obliquely. to. cuneate. PodoThe base,. Peltophorum. school. )unior-high GYNU-CMP11041.. 1970,. present. op.. shows Inkyoyama.. also. 3丘g. 90, is. specimen. at. IsHIDA. notoensis. °it., p.. is similar. species. shape,. pl.. prominent somewhat resembles in southeastern Asia. growing. notoensis, which The leaf is obtuse. living. collection in the Miocene. linear. 3,. 91-92,. awn,. (Pl. notoensis. bd.. Helv.,. writer's. species. Milletia. Milletia. Cinnamomum. to. 12). 1859,. short. Izumi. 1963,. BRAUN. 1970,. characterized. Occurrence:. A.. HERR,. common. BAKER. (DC.). ♪terocarPum. 1.. 18,fig.. pl.. HuzIOIくA,. specimen resembles in Japan, Taiwan regions. Is日IDA, leaf. one. which. .gonium cuneate. BRAUN.. 135,丘gs.ト9.. Remarks:. present. A.. 3, 5.. Leguminosae. (Pl. knorrii. p.. 26,丘gs.. 2, p. 86-87,. GYNU-CMP-1047.. Ponogonium. 22-26;. Bd. 628,. school.. Family. Podogonium. Japan.. lslリpl.. .jaPonicum. くChina. Occurrence. Helvetiae,. 6-8.. 33,丘gs.. pl.. HEER. (UNGER). to. base,. variable. 2) 15,fig.. pl.. incomplete. the living compared basal. 4.. but. M.japonica with. aspect･. the. is comparable. with. (SIEB.. Zucc.). type. and. specimen,. but.

(15) Miocene. Collection:. Floras. Hypotype,. Paci丘c. the. of. Leaf. about. ･petiole. 2･5-4mm. long,. margin. entire;. venation. part,. to. reaching. -in number,. the LOn. the. other. remaining. part. 5-20mm vein. LSeCOndary. secondary. vein,. along. of. half. of the. branches. or. Remarks: it by. from ･1ikes. the. short. Occurrence:. species. somewhat. Holotype,. GYNUICMP-1029;. Description:. Leaf wide,. unpreserved,. ･slightly curved rather. ･daries. slightly. protojaPonicus. comptodromous,. base. cuneate. of with. thin. but. is assorted species. Asia.. ･straigbt,. 5-9. pairs. secondaries. diverge. bearing from. extehding tertiaries. from. 1030.. sp.. n.. rhombic-obovate, with. in apical part, diverging stout,. GYNUICMP-1028,. 4). to. 5-6 secondaries midrib. the. with part. middle. in basescopic the. slightly stout. midrib. midrib. per. angles of. side, with. the. the. angles. asymmetrical,. and. of. basal ±25. margin,. remainlng. of. but. straight,. side; leaf. 13cm. c.. probably. corner,. round. triplinerved;. palmately. asymmetrical, branching. of. texture. Paratype,. (Pl. 3,点g.. apex. 4mm2,. Eupborbiaceae. Mallotus. 7cm. per. per. 35. lcm. absence. which. to. three-fifth. This of palmatly venation･ is widely distributed in southeastern. and. Family. c･. third. 3-5. AlangLum,. recalls. other. the. Inkyoyama.. Collection:. long. nets about. the. of. middle,. about. vein-endings;丘Im. part. is narrowト4. distinct,. rather. nervules. free. petiole. reaching. tertiaries. branched;. Puerana,. modern. of. lamina;. present. lamina. upper. part. the. side諒ith. the. midlib. in. ln. larger. the. other. and丘rst. widest. arising. on. in. side at. side. but. side,. the. on. secondaries. part. each. secon-. other. degrees. both. on. larger. the. of. unbranched. The their. each. On. 40-60. degrees. degrees. two. remaining larger side. of the. 40-52. 30-40. at. at. at. and. 6-8. from arising degrees 50-55. slender,. margln. lamina. at. and. arlSlng. the. midrib; in upper. alternate,. the. of. proximal veins larger side of lamina. the. undulate to. extention. most. the. on. by. cuneate;. with. or. asym-. wide,. widely. angle. subopposite. somewhat. branched. some. an. making. interconnecting the. 47cm. asymmetrical,. straight. lamina. the. long,. veins. the. the. of. of length. sometimes. lower. at. ￣two-third. base. secondary. the between space tof lamina; 皿m in basal丘rst-second part 七Side, and. 5-7cm. orbicular,. of. abaxial branches,. ￣1-3 abaxial. 15. 3). midrib. degrees. 1-4. with. 9Side. (I). sp.. part;. margln,. side. Japan. comptodromous;. upward,. the. 70-75. at. wide,. n.. 3,丘g.. acuminate,. mm. aplCal. at. midrib. the. 1. curving. almost. rdaries. apex. ll;Pl.. to. rhombic. midrib,. tanaii. 2,丘g･. (Pl･. metrical. Central. of. GYNU-CMP-1040.. Pueraria. Description:. Side. 65-75. secon-. degrees, rather Several degrees.

(16) in. loot)es. the. near. first and. the. curved. their. margin. veins,. modern. zone. is related. also. and. China. southern. its. some resembles especially Occurrence: Inkyoyama.. Collection:. Hdlotype,. Remarks:. REHD.. ARC.). and. Occurrence:. 1961,. in. growing. Hypotype,. 12cm. lateral. basal and. lobes. tlp;. obtuse side teeth. of. upper. 5-9mm;. 5･. IsHIDA,. but. have. 1970,. close. in. place. veins･. secondary. var･jaPonica (MuLL･. Zucc･. and. close. Japan･. 1043,. tokiensis. dissected. sinus. pickax-shaped; long c. 7cm lobes, c.. smallest. lower. margln. half; primary. not. 3-4cm. from. lateral. lobes. teeth. veins. 1-4mm 7. in. n.. sp.. 8,. 3,figs,. 9) palmately. orbicular,. being. ratio. ･from apices c.. to. 5-5.5cm. the. rigid. of. and. apices, of c･ 50-. the. the. basal. umbilicate. and. middle. primary. vein,. prlmary. Vein,. acuminate. rounded. its base,. at. depth. the. of. apex or. a. in. base base. long,. acute with height from. number,. Veins. largest. to. apices. 1), obtuse to. 9cm. c･. septem丘d,. 0.75:. prlmary round, lobes elliptlCal,. cremate. entire,. 10451. Aceraceae. depressed. 1amina. at. medium. incomplete. its fine and SIEB･. (the length/breadth. wide. base;. upper. but. Australia,. tropical. 46, pl･ 14,丘g･. p･. are. GIYUICMP-1042,. Leaves. Descrii)tion:. cent,. cit･,. warmer. (Pl.. at. to. ONOE. and. hand. microPhylla. Acer. cordate 60 per. of Burma. former･. with. Family. c.. in. Inkyoyama.. Collection:. long,. China,. parts. MuELL.-ARG. to. in. growing. 5). op･. on. now. Buxus. WILS.. resembles. MuELL/ARC.. southern. (LAM.). 3,丘g.. ProtojaPonica. resembles. specimen. 13-14･. leaves. Buxus. with. relationship This species. ONOE,. 15,触s.. Three. and. i)rotojaPom'ca TANAI. and. 93, pl.. °it., p,. op.. renexed. Buxaceae. (Pl. TANAI. in. GYNU-CMP-1037.. Buxus. ProtojaPonica. per. branched,. present. jaPonicus. of the. specimens. Family. Buxus. The. Philippines. and. ±3. texture thin･ ;film Mallotus in is identical with. Formosa. Malaya. through. some. lcm. unknown. petiole. paniculatus. its a咽1es. making. veins. sometimes. impression. Japan,. of. Mallotus. to. veins;. venation. Mallotus. of. irregulary,. tertiary. regulary,. leaf. decreasing. but. side,. alternate. entire;. specimens. warm-temperate. or. spacing. and. shape. other. tertiary. apical-ward; This incomplete. some. the. opposite with. secondary. characteristic. the. mm,. in. margin. Remarks:. the. degrees. 40-70 side and the first several. one. within. or. OzAKI. K.. 16. with on. teeth. length at. its. an. each of the radial.

(17) Floras. Mi｡cene. primary. basal. from. entering. the. nerves. nervules obscure･; of c. 0.3-0.6mm;. meshes Remarks:. There. lobes. somewhat. HuzIOKA. and. lobes. the. world, A.. irregular. by. L.. in the. and. Acer. HuzIOKA,. dents,. lobes,. of. upward,･ tertiary. or. polygonal. size,. or. the. miyabei. MAXIM･･. the. sinus. shape. and. in. diabolicum. shape. lobes. the. the BL･. foliar. general. between. in be､. OISHI-. maples. A･. in. differing of. in. seven. may. ezoanum. living. the. shape. A･. ENDO,. but. but. species. present. differs. present'. radiated indentations. acute. Among. the. as. and. Inkyoyama. Holotype,. Collection:. GIYUICMP-1036.. Acer. cf.. NATHORST. nordenskib'ldi. 6). (Pl. 3,丘g･ Nordenskib･ldi figs.. 10-15.. cit.,. Bot.,. 60,. p.. univ.,. ser.. TANAI. 1883,. NATHORST, KoN･NO,. Jap. Jour.. 6.. lobes,. each. base.. of. Occurrence:. Acer. large. Palaeodiabolicum. maginal. number. strong. lobe;. and. regarded. known,. fore. hitherto. serration･ Acer resembles. in. are. comparatively few of･ cremate. marglnal. camPestre. lobe. 0･4mm. c･. less. curving. tetra-pentagonal. which. the. lobes. species. degrees,. 120. c･. of. unknown. leaves. no. fatisiaefolia. and. present. especially. shape. A.. and. of. number. and. forming. with. comparable. prlmaries and basal. degrees,. between. sinus. petiole. elliptical seven fassil leaves Among. prlmaries,. lateral degrees,. 90. angles. 50-80. angle. reaching. are. of. at the. primary. the. at. It is characterized. species.. angle. prlmaries･. lower c･. lower. the. lateral. in the middle primary, wide the length; veins secondary along 3-5 in pairs oppositely arranged,. or. or. the. in. except. upper. Vein,. 17. (Ⅰ). 0･8mm. c･. prlmary. teeth. marginal. lobes. each. prlmary. at. middle. part. alternate. prlmary,. diverging. the middle. tapering. prlmaries,. the. than. basal. Japan. slgmOidaly,. curves. the. Central. of. of. apices. primary. from. at. veins. from. middle. diverging. prlmaries. in. the. the. weakly. 40 degrees. from. diverging. it. where. c.. at. arising. into. straightly. point, entering lateral lobes. Side. Paci丘c. the. of. 1931, 8, p.. γol.. Kgl･. Sv･. op･. 322, 1,. HuzIOKA,. 6･. pl. 34,figss. 1-2, 4, vol･ 4, nos･ p･ 148･ ONOE, 1961, Geol. Surv. and. 12. pl. 17,丘g. CARRリHuzIOIくA, ornatum. 1938, TANAI,. pl･. 1938, CHANEY, op･ and Imp･ Fac･ Sci･･ Hokkaido. Hu. Jour･ 1961,. Report. Japan,. ll, vol･ 20, p1 60･ pl･ 4, 5･ MIKI, 1937,･ 31,丘gs･. Ⅱandl･,. Vet･Akad･. 3; cit･, pl･ 13,fig･ 9-A;丘g･ 8P-QI pl.. op･. 358,. pl･ 28,五g･ 47, pl･ 15,丘g･. p･. cit･･. no.. 187,. p･. 1;. Acer. 4, Acer. 7, nol,. vol.. 4,丘gs.. the. middle,. FLORIN,. Jour.. Jour.. Fac.. Sci･. lmp･. Hokkaido. Univ･. ser･-. 9･. pl. 13,丘g･ 1920, Kgl･. Vet･-Akad･. sv･. Handl･･. Bd,. 61,. no･. 1, p･ 23,I. 1-4.. Leaves. Description: to. 1943, 133,. p.. TEUNB･,. Palmatum pl.. 1,. deeply. suborbicular.. cordate. at. base,. 6-8cm lobes. wide, ovate,. 7 ･1obed. palmately. rather. acuminate,. often-. regularly. serrate.. Remarks: amoenum. Present. (CARR.). OHWI,. species With. much ovate. resembles lobes. and. Acer. Palmatum. single. dentation･. THUMB･. Var･.

(18) 18. K.. Occurrence. Inkyoyama.. :. Collection. OzAKI. Hypotype,. :. GYNU-CMP-1038,. Acer. 1039.. SAPORTA. subpictum (Pl. 3,丘g.. Acer. SAPORTA,. subpictum 35,丘g.. 1.. Hロand. OISHI. 4,. vol,. 7,. p.. 129,. pl.. 1;. pl.. 1,. no.. 93, pl.. p.. 24,丘gs.. 28,丘g.. HロZIOKA,. 4-6;. 2.. 1963,. 19431b,. 13,丘gs. N.. °it., p.. TANAI,. Sci.. 4.. 3,. op.. 1.. 34,丘gs.. pl.. cit.,. IsHIDA,. 142,. p.. 1970,. ibid., 27,丘g.. pl.. 7,. 21,丘gs.. pl.. op.. ser.. 1943,. 365,. citリp.. pl.. Univ,. HuzIOKA,. op,. 4, 7;. Imp.. Eokkaido. 1961,. 1963,. pl. 37,丘g.. 61,. citリp.. Fac.. 14,丘gs.. pl.. 3.. SuzuKI,. 209,. op.. Jour,. 1-4;. 25,丘g.. pl.. TANAland op.. 1938,. CIIANEY,. EuzIOKA,. and. 7). pl.. citリp.96,. 9. 15,. 丘g.15. Acer. THUNB.,. Picium op.. °it., p.. Remarks: ￣MAXIM. Acer. NATIIORST, 24,. 1883,. pl. 4,丘g.. Fragmental. leaves. is widely. which. op.. 60, pl.. °it., p.. 12,figs.. FLORIN,. 2-8.. 1920,. 5.. a. show in. distributed. Asia,. northeastern. Acer. to. resembrance. close. mono. is referred. and. to. SAPORTA.. subpictum Occurrence:. Izuml. Collection:. school.. junior-high. Hypotype,. GYNUICMP-1019,. 1020.. Bibliography AxELROD,. D.Ⅰ., 1939. desert. 1964.. Geol. BERRY,. Prof. ,. BROWN,. --,. The. A. A. R･W･,. from. Miocene且ora Additions. 1951･. flora of southern. Idaho.. Mobave. the. of. Univ.. formation.. Latah. vol.. On. IGPS,. Calif. U.S.. Pub.. Geol.. Surv.. 40, Pt.. 3.. On. fossil. Sequoia. discovery. Acer. United. western. in. Taxodium. and. Metasequoia. Korea,. States. ibid.,. Plains.. Great. and. of. fromJapan,. ibid., 170-C.. the. of. Mountains. fossil. of recent. floras. western Philos.. Amer.. Manchuria.. andSouth. 375. North. Soc.,. Short. 1.. no.. On. 1951.. Rocky. of the. Washington,. coulee,. fossil. some. the. the. Grand. to. revision. on. N.S.,. 1950-b,. no.. A. based. Sリ1950-a. Papers. Creek. Border. Western. revisionofthefloraofthe. ibid., 186-J. 1962. Paleoceneflora. Trans”. the 516.. 51.. 1937.. America. the. fossil fossil. the. Carpinus Acer. from. Japan and Japan, Korea. from. Korea.. ibid.,. South. and. 2.. no.. ibid.,. Manchuria.. 3.. 1953.. Notes. Glyptostrobus. Notes. 1955･. Icones. Korea.. fossil. Cainozoic. plants. from. plants. of. East. Jour. Sci.,. Kumamoto. the. on. plants. of. East. Japanese. the. Asia. B,. ser.. Asia. Islands. 1. no.. 3-6.. A. new. species. of. 2.. ibid.,. no.. (in Japanese).. 4.. Sangyo･. Tokyo.. ETTINGSHAUSEN,. C.. 1851･ R･,. Cainozoic. the. on. from. 1954. Tosho,. FLORIN,. Trapper. from. Publ.. 154-H.. Paper. 1931,. 且ora. Washington. Miocene. vol. 1929.. A.W.,. CflANEY,. ENDO,. Inst.. Sci.,. E.W.,. Miocene. A. Carnegie. Die. 1920･. VON,. fossil Zur. 1851.. Die. tertiarfloren. Flora. von. Wien･. Kenntnis. der. Abh.. jungtertiaren. der geol･. Osterreichischen Teichsants.,. Pflanzenwelt. Monarchie. Bd.. Japans.. Ⅰ.. 2. Kgl.. sv.アer.I.

(19) Miocene. Akad.. Floras. Handl.,. GARDNER,. Bd.. 61,. J.S., 1886. Soc.,. E.R.,. Die. Flora. Japan. (I). Eocene. flora.. vol.. British. of the Flora. tertiare. Bd.. 19. 2.. Palaeont.. Flora. tertiaria. helvetiae,. Bd.. 2.. Flora. tertiaria. belveriae,. Bd.. 3.. 壬Iu, H.H.. E.W.. and. Palaeont.. CrIANEY,. Sinica,. K.,. BuzIOl<A,. 1938,. Notes with. 1943.. Notes. on. 1951.. Notes. on. Proc.. Palaeont.. on. 1954.. ditto. IV.. 1955.. ditto. V.. 1963.. TheUttofloraof. 1963.. Tertiary. ibid.,. no.. ibid.,. from. plants. Heigun,. Ya･. Carpinus. and. of. genera 4,. γol.. I.. Tyosen. 1-2.. nos.. ibid., vol.. 7,. (Korea)･. 1.. no.. Trans･. II･. Korea. ⅠII･. (Ty6sen)･. 13･. no･. ,ibid･,. 15. 19.. no.. Tertiary. northernHonshu. 80th Commem. Ann.. Assoc.. China.. 3.. no.. some. 4,. Tyosen.. from. plants. the. of. ser.. from. lsland. the. species. Univ.,. plants. N.S.,. from. new. Imp.. Tertiary. Japan,. Notes. Collab.. of. Tertiary. some. Sac.. Province,. Shantung. plants two. Sci., Hokkaido. 1954.. floras.. Neogene. some. some. 1-7.. Mioceneflorafrom. 1.. description. four. Fac.. Sassafras.. A. no.. on. Bd.. arctica.. 1938.. N.S.A.,. Pref‥. maguchi. fossilis. chlesien.. 1.. 1859.. Flora. in. Schossnitz. Yon. belvetiae,. tertiaria. 1956. 1868-1883.. The. Aniai且oras. and. The. Aniaiflora. of. Geol.. flora. Suru.. Daijima-type. Akita. Prefecture,. floras.. the. Miocene. Japan.. of. Japan. Fossil,. (in Japanese).. 5.. no.. 1964. Honshu,. Japan.. 1972.. Tertiary. S. NISHIDA, Publ., E.. and. Floras. Honshu,. 1960.. Sekiflora. The. TAKAIIASHI,. S., 1970, Sci., Kyoto. 1970.. Jour.. The. The. Min.. Noroshiflora. R.,. Univ.,. 1936.. KRÅusEL,. ser.. Formosan. in. 1931.. R.,. the. Island. 3,. vol. Coll.. in. floras. 4.. no.. Akita. Univ.,. A,. ser.. Sado. (in Japanese)･. Sado. Noto. and. vol.. Univ.. Trees. vol.. no.. no.. to. lndigenous. southwest. 5.. no.. Japan.. Mehi.. Fac.. 1.. Mizunami. Miocene. 8,. 4,. Central. 37,. of the. studies. coal-field,. γol.. A,. Ser.. Penunsula,. Miner.,. Ube. the. of. Uni仇,. group,. Central. Forest.. Govern.. 2.. the. lsland.. Debt.. Formosa.. Inst., E.,. Min.. Eoceneflora. of. Geol.. Paleoecological ∫.,1960. Earth Sci. Nagoya Japan. Jour.. EoN'NO,. ser.. Jour. of. Akita. Coll.,. ITOIGAWA,. Res.. Univ.,. Korea.. A,. 3.. no.. Japan.. KANEHIRA,. Akita. of. Aniai-type. the. and. 1.. no.. and. Mus,. Call.. Min.. Jour.. The. 5,. γol.. IsHIDA,. Central. 1.. no.. monograph. 1855.. 0リ1855.. -,. of. London.. GoEPPERT, _BEER,. A. Side. Pacific. the. of. F. Die. 1920.. Honma:. Geoloty. Pflanzin. des. Central. of. Shinano. (in Japanese) Jahrb, Kb'nig.. Tertiars.. Schlesischen. preus.. L.-. AリBd.38. KROssMANN,. G.,. KRYSHTOFOVICH, Province. _LAMoTTE, California. Tリ1960,. Carn. 62.. 1,. 2.. tern. call.. Wash.. The. Eocene ibid.,. vol.. Parey.. Tertiary. the. Soc.,. Palaeont.. Tertiary且ora. of. the. flora. vol.. of. Kwannonzawa,. 6.. Shinano. and. Province,. Tajima. Nat'l.. Green 83.. introduced. and. Taiwan. vol. River. and. adjacent. ligneous. plants. of. Taivan,. Univ.. Kilgoreflora Sci,,. Nevada. of notrhwestern. 455.. Publ”. of native. The Geol.. Bus.. Cedarvill且ora. upper. Agricul.. 1962.. the. to. 8.. Illustrations. H.D.,. Utah.. Ann.. no.. Inst.. Calif. Publ.. 1969.. ---,. Contributions. to. 6, The. 1936.. Paul. Nadelgeh61ze.. Japan.. ibid” vol. R.S.,. ーMACGINITIE, Univ.. 1926.. Contribution. Japan.. vol.. Die. A.N., Echigo,. 1930.. 上IU,. 1960.. -A. late. Mioceneflora. Nebraska.. northern. 35. flora. of. northwestern. Colorado. and. northea･.

(20) K.. 20. MATSUO,. 1963.. flu. Japan. MIKI,. The. Plant. Ja♪. Jour.. Bot.,. On. 1941,. Collab. from. in. beds. A.G.. Handl.,. 1883.. OISI叫S.,. Anniv.. bed. Elepbas. the. 且oras Surv.. Geol.. of二. Japan. Akashi.. near. Asia. Eondo.. ibid., γol.. ll.. from. the. Miocene. γol.. 40.. Terminalia. four. Geol.. Soc.. Japan, flore. ContributionえIa. fossile. du. Ⅰ.The･. Period.. Tertiary. since. Oguni,. of. Kgl.. Japon,. Yamagata. Sv.. Vet-Akad.･. 20.. vol. Znr. 1888.. 80th and. eastern. central. fossil. the. (in Japanese).. NATHORST,. beds. Tertiary. Peninsula.. Commem.. Stegodon. changeofflorain. On. Noto. of. Assoc.. 8.. vol. the. Ⅲ. 1936. Pref.. fossils. lignite. or. clay. MoRITA,. Notonakajimaflora. ･Miocenefloras.. S., 1937.. OzAKI. fossilen. Flora. Illustrated. 1950.. Pal.. Japans,. catalogue. East. of. 4.. Bd.. Abh., Asiatic. fossil. (in Japanes-e),I. plants. Kyoto. I(.. and Fac.. Sci.. HuzIOKA, Hokkaido. Imp.. OKUTSU,. E.,. Geol･. 1940. H.. Prof,. K.,. T.. SuzuIくⅠ,. On. TANAI,. T.,. On The. important. Hokkaido. 1971.. T.. and. Palaeont.. N.. and. Fac.. Soc.. riversI. Jour. Geol.. Sac.. Japan,. 1959.. 1961. Tottori. SuzuKI,. and. 1960.. Sci., Hokkaido 1963.. and. Japan, 1965,. Soc.. Japan,. 14,. Fukushi･･. species. Sci･. Japan･. ll,. γol.. Paleogene. of`. Rept･. Face. Japan,. Jour｡. 2.. no.. Hokkaido,. of. Japan.. from. Ashibetsu. from. the. Japan.. Hokkaido,. coal丘eld, 4.. no.. Japan,. 10,. area,. Jour.. Hokkaido,.. central. from. Miocenefloras Miocenefloras.. 4, vol.. GeoLl.. γol.. from 10.. Surv.. area. Japan,. Hokkaido,. southweatern no.. on. the. Report,. Japanp. 3.. of so･uthweatern Collab. Assoc.. Tertiary月.oras Paper,. 10,. Joban. the. of. Ningyo-toge. PrefecttlreS.. maples ser.. part. northern 4.. no.. γol. 且ora fro皿the. Okayama. Miocene. Late. 2... no.. 4.. Surv.. Univ.,. SPecial. 9,. 66.. Kushiro. the. Mio-Pliocene. A. Pliocene. and. Hokkaid(),. ibid.,. no.. Mioceneflora. Geol.. in. 4.. no.. the. N.S.,. 4, vol.. no.. A. Bull. remarks･ vol.. 9.. district,. Japan.. Sakipenpetsuflora. Mus.. ONOE,. in. Japan, ser.. ll,. from. from. Univ.. Miocene. northeastern. vol.. change. Miocene. Sci.. tiaryfloras of Surv. Japan.A and Palaeont.. the. 15.. no.. formation. Tennoji Japan, no.. Tohoku. from. 4,. ser.. 01igocenefloras. and between border no. 187.. Jour.. Sendai-. 10.. Hamamelidaceae. the. Japan.. coal-丘eld,. Comm_. of. in. leaves 2,. see.. stratigraphcal with Sci. Mus.,Japan.. Nat.. Collab.. the. of. maples. Neogene且oral On. The. Nat.. beds. (in Japanese).. Japan,. characteristic. no.. Uniu.,. Sci., Hokkaido. Mem.. Jubilee Publ. plant. plant. Univ.. Miocene. Geol.. part. Univ.,. Late. Proc.. 1970. Fac.. and. 1963. 1961.. Assoc.. Monogr.. Tertiary. Trams.. some. flora. Bull. Upper. of the. the且ora. southern. 1967.. in. Desmostylids.. from. Sci”. teeth. Desmostylian. the plants･ Art. Sci., Fukushima. Fac.. its. Earahuto.. and. flora.. Cenozoic. of. of Nat'l.. and. groupe. Jour-. 26.. vol.. Yokohama. Rep.. Izumi. Japan.. 1961.. 2,. its. and. palaeontoloty. ser.. Hokkaido. from. beds. transportation. of. Robe. some. 1959.. SuzuIくⅠ, N.,. Uniu.,. Sci.. and. basin.. ma. vol. and. Karahuto.. and. 1.. 45.. Keton. K.,. Tohoku. The. γol.. 1966.. the. 2.. stratigraphy. Sakawa.. 1938.. JaPan,. plant. Observation. and. SIIIKAMA,. the. Hokkaido. 4, γol. 7, no. Tertiary ⅤⅠⅠⅠ. Ulmaceae ser.. Birthday,. the. from. Acer's. vol1 24･ Nenoshiroishi. 60th. Rapt.. 1969.. Haya. on. On. On. Sci.. area.. Geogr･,. Yabe's. 1955. OzAKI,. Univ.. 1954.. and. JaP･ J9ur･. Tertiary. 1943.. Hokkaido,. Commem.. notrheastern. Japan. 80th. Hokkaido,. Ann.. Ter･. Geol... Japan..

(21) Miocene. Floras. 1972.. and. Jour. Fac.. Japan. UNGER,. F.,. WEYLAND,. 1847. E.,. Erg畠nzungen chiefers. Rott. to. Hokkaido. zur. the. of. Central. Mioceneflora ser.. 4,. vol･. Japan of. 15,. 21. (Ⅰ) Hokkaido. southwestern. nos･. 1-2･. Leipzig. Kenntnis. Berichtigungen in. Side. Univ.. Protogaea.. Beitrage und. von. Paci丘c. the. Addition. Sci.. Chloris. 1937.. of. Siebengebirge.. der zur. Flora. Tertiar且ora･ rheinishen der B16tterkohle und. PalaeontograPhica,. Bd,. 83,. Abt･. 2･ der B･. Erste. Poliers･.

(22) Explanation Figs.. 1,. Figs.. 3,. Figs.. 5-7.. 2.. Keteleeria. TANAI. ezoana. Plate. of. 1. (GYNU-CMP11061,. 1062),. Loc,. Figs.. 1,. 2a.. 1a,. ×2. 4･. Pinus. TANAI miocenica Pseudotsuga huziokana. 6, 7, Paratype Figs.. lO56) ; Figs.. 10,. 11･. 10,. 12-20･ Fig.. ChamaecyParis 19,. 13118,. 21･. Metasequoia. Fig.. 22.. Fig.. 23･. sp. cf. Carex cf･ Phragmites. 24, 25･ 26.. 1,. (GYNU-CMP-1064) 5a,. Figs.. ;. Figs.. 6a, 7a,. ×2. 9, Holotype. Fig.. ×2.. TANAI. protokonshii. shikam?na Paratype. 20.. and. ONOE. (GYNU-CMPLoc.. (GYNU-CMP-1057). n･. Fig･. sp･. 12,. (GYNU-CMP-1060,. Holotype 1063,. (GYNU-CMP-1067) 1069,. 1070,. (NEWB.) CHAN巴Y (GYNU-CMP-1055), 1, ×2. Loc. (GYNU-CMP-1049), Loc. 1, x2. sp･ (GYNU-CMP11046), KoN'NO. Fig. 24, (GYNU-CMP-1042), subyedoensis. occidentalis. Carpinus. Loc.. (GYNU-CMP-1020), Fig.. Loc,. Holotype. 1071). ×2;. x3.. Fig.. Figs.. sp.,. 1,. ×2.. Figs.. ×3;. n.. Loc,. 1.. (GYNU-CMP-1057).. Cunninghamia. cf･. 1,Fig. Figs.. miosieboldiana 8, Paratype. Fig.. 5,. Fig.. sp.. (GYNU-CMP-1061),. Tsuga. 8, 9･. Loc.. (GYNU-CMP-1058) n.. Carl)inius. sp.. 2. Loc.. (GYNU-CMP-1043),. (All丘gures. in. natural. size,. unless. 2. stated. otherwise.). Loc.. 1,. Fig.. ×2.. 25,.

(23) See.. K. OzAKl. 1I,Plate. ll. 5a. /i/”. 1a 7a. 6a. 8. i 2a 14. 19. 22 21. 10. I.

(24) Explanation Fig.. 1.. Quercus. 2, 3.. Quercus. Figs.. 4, 5.. Quercus. Fig. Fig.. 8.. Eucommia. Fig,. 9.. Magnolia. Fig.. 10.. Cinnamomum. Fig.. ll.. Pueraria. Fig.. 12.. Podogonium. 6.. the. aplCal. 2. SuzuKI. Loc･ 2･ (GYNU-CMP-1005), Ulmus sp. (GYNU-CMP-1046), 7. Zelkova (ETTINGS甘ANSEN) ungeri. Fig.. Plate. Loc･ 2･ (GYNUICMP-1008) KRYSTOFOVICH 1005) Loc/1･ Praegilva (GYNU-CMP-1014, Loc･ Fig･ 4 TANAI (GYNU-CMP-1029), subvariabilis. ♪rotosalicina. Figs.. of. Loc･. 1･. Loc･ 2･ (GYNU-CMP-1025), 1･ Loc･ n. Holotype sp. (GYNU-CMP-1027), n軸onica CHANEY Loc･ 1･ Hu (GYNU-CMP-1033), miocenica and Loc･ HEER lanceolatum cf. (UNGER) (GYNU-CMP11047), 1･ Loc･ Holotype n. sp. (GYNU-CMP-1029), tanaii Loc･ 21 Fig･ 12a･ knorrii A. BRAUN (GYNU-CMP-1041),. part. which. (All丘gures. in. baying natural. short size,. Fig･. _1;. KovATS. awn,. unless. ×3･. stated. otherwise･). 2･. shows. 5･.

(25) K.. OzAKI. See. II. Plate 2.

(26) Explanatiom Fig.. 1.. Fig.. 2.. Fig.. 3.. Fig.,. 4.. Fig.. 5.. Fig.. 6.. Fig.. 7.. Figs.. 8,. Quercus. of. Plate. 3. TANAI. 1. Loc. (GYNU-CMP-1008), 1. Loc. (GYNU-CMfし1040), notoensis Pueraria tanaii n･ Loc. 1. Paratype sp･ (GYNUICMP11030), n･ Mallotus Holotype Loc. ProtojaPonicus sp. (GYNU-CMP-1037), Loc. 1. Buxus TANAI ONOE ProtojaPonica and (GYNU-CMP11043, Acer Loc. NATLIORST 1. cf･ nordenskib'ldi (GYNU-CMP11038), Loc. 2. Acer SAPORTA subpictum (GYNU-CMP-1020), 9･ Acer n. Holotype tokiensis sp. (GYNUICMP11036a, b), Loc. 1. subvariabilis. Milletia. (Allfigures. lsHIDA. in. natural. size,. unless. stated. otherwi･se.). 1. ×2..

(27) K.. OzAKI. Sec.. ⅠⅠ, Plate. 6. 3.

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