H lg ex ee ma ee

Sept.

1937. 179

Cyanophyceae

_of

Japan, I

H lg ex ee ma ee

^--

tw

Yfiichi YoNEDA

)IQ

M S

^-

'

Only ^very littlels

known

concerning the freshwateralgae of

Japan.

^It

must be an impQrtantwork tQ make the catalogue of thealgal population

of our country, which is

hardly

exprored. Especiallyin ^{view of our very} incompleteknowledge respecting Cyanophyceae,the attractiveness of a study of thisalgae ls^very great,

^{The writer}

^has

^iatelybegun

^his

algologica! survey, and

he

^strongly

wishes the papers,^{which will} be _published infuture,will serve to make

the cemplete list^of Cyanephyceae ^of

Japan.

^{The following}quitefragmental

report contains i8genera, 38 ^{species and} s^varieties.

^{The writer herewishes to express hisheartythanks te Prof. Dr. G･}

KoiDzuMz forkind advise and unfailing encouragement.

CHROOCOCCACEAE

^i.

Microcystis

marginata

(]V[ENEGH,)

^{KtTz., Tab.} phyc.I,_p. 6, pl.^8,

i845-4g; W. WEsT in

Journ,

^{Linn. Soc. Bot. 2g,} p.^{2oo, I8g2;} FANNiNG

inMinn.Bot.

Stud.

2, p. 6I3,pl.4s, ^Igol; SETcHELL& GARDNER in Univ.

CaliftPubl.Bot. I,p. ^{i8o, rgo3;} Sc}inmoLEinBot.

Jahrb･

32,pl-

S7,

^igo3;

G.S.WEsT in

Journ.

^Bot.42, p.^{2g3, igo4;} DE ToNi,Syll,

Alga= s,

p.gr,

igo7;

LEMM., Algen

I inKryptogimenfl. Mark Brand. III,_p. 74,^igio;

CRow in

Journ.

^Bot.61, pl ^{(3g, Ig23;} GEiTLER,Cyanophyceae inl?AscHER, Stisswasserfl.i2, p. s8,f._3g, ^ig2S; STR6M inNyt

Mag.

Naturvid.62, p.

20I, pl･ ^I3, f.35---37,^lg25 ;

WEsT

& FRiTscH,BriL Freshzv. Alg. p. ^462, fiI86 B, ig27; GEiTLER,Cyanophyceae in RABENH.,Kryptogamenfl. r4, p.

I36,

£ Sg

^{a-c, Ig3o; SMiTn,Freshw.} Alg. U. S. _p. 6o, Ig33; HiRosE in

Journ･ Jap.

^{Bot. i3, p. 4g4, f･2･ i937･}

Colonies^{usually spherical,} sometimes flattenedand lens-shaped,often confluent, pale green,^{colourless at the margin, surrounded} by ^a distinct,

often thick, colourless common envelope; slze of colonies 8o-roopt india- meter.

Cells

^{sphericnl, sometimes} angular, small, 3-s" indiameter,densely

aggregated ;^cell contents blue-green,laterbecoming granular,^{with vacu.}

oles.-Fig. i.

Hab. Planktonicin_ponds.

The Japanese Society for Plant Systematics

NII-Electronic Library Service

The JapaneseSociety for Plant Systematics

'

.lso

Vol, VL

Mizoroga-ike,

Kyoto (May

^I933)･

The

colonial ^{envelope, when} young, is^thick,

fir:n,

^{and often two-} layered;laterit^seems to become comparatively thin.

^2.

Microcystis

aeruginosa KtiTz.,

Tab.

_phyc.

I,

_p･

6,

_pl.8, ^i84S-4g;

BoRGE in Ark. ^Bot. 8,^{No･ I3,} p. ^{2o, rgog;} LEMM.,

Argen

^{Iin Kryptoga-}

rnenfL Mark Brand. III,_p.

7s,

^fli7

(p.

^{44), !gio; CRow in}

^Journ.,

^Bot.

6r, p. ^{i3g, rg23;} GEzTmR, Cyanophyceae in PAscHER,Stisswasserfl.I2, p.

s8, fl

_37,4o, ^ig2s; SKuA ⁱⁿ Act.Hort. Bot.

Univ.

Latv.i, p. ^{iso, ig26;}

WEsT & FRiTscH,Brit.Freshw.

Alg.

_p.462, £ I8g D, ^Ig27; SKvoRTzow

in

Journ.Bot.

^6s, p. ^{ig6, ig27;} GJsrT=ER,

Cyanophyceae in RmmH.,

^Kryp-

togamenfl. i4, p. ^i37,

fl Sg,

^{d, ig3o; ALMA in Pap. Mich. Acad. Sc. is,}

p. 7, ^ig32; DRouET inBuil.Torr. Bot.Cl.sg,p. ^{2g6, ig32;} TAyLoR in Pap. Mich. Acad. Sc. Ig, p. ^{23o, ig33;}

SMiTH,

Freshw.

Alg.

U.

S.

_p. 6o,

'

_£

_i2 A, Ig33; CEmiRcREvTzln

Act･

Bot.Fbnn. i5, p. ^{io7, ig34;} Li in Ling.Sc.

Joum.

^{i4, p. 47o,} rg3s;HiResE in

Journ･ ^Jap.

^{Bot. !3, p.4g3,} _,

･f _{I, I937･}

C)(athrotlptstisaefzrginosa

(KtiTz.) ^HEpiFREy,

^inMic.

Journ.

p･s3,pl.^4,fl

28-36, i8s6; WoLzE, Freshw. Alg･ U･ S･ _p. 327,pl.^2io,

fi

i7, i8, i887;

'CoLuiqs,

AIg.

^Middresex

Count.

_p. ^{i6,'l888; [[ULDErifin Minn.} Bot.Stud.

I,p. Sgg, ^I8g6;

OKAMuRA,

^{Synopt. List}

Jap.

^{Alg. p.222, rgo2; ScHMrDE}

in Bot.

Jahrb.

^32,p.

s7,

igo3;MATsuMuRA, Ind.Pl.

Jap.

p.^{3, iga4;} LEMM.

in Ark. Bot. ^2, No. 2, p. ^{i46, igo4;} DE ^ToNi, Syll.Algar.s,p.g4,^igo7;

BvcHANAN

In Proc･

Iowa.

Acad.

Sc. i4, p. g, ^igo8;

IIILDEml,

Myxophyceae, Minn. Alg. I,_p. 37,pl.^2, L 2I-22, IglO; HiGAsm iu OKAMuRA, Synopt List

Jap･

^{Alg. p. 3Q4, i9r6･}

thijtlrstzZsaerzig'inosa KtiTz.,Tab. phyc.I,_p. 7, ^I84s-4g; LEMM. in Ber.^deutsch. Bot.Ges. ^18, p.

96,

^1900･

Plantmass a brightgreen ^scum, floatingln^vast strata on freshwater pools, presentlrtg^{to the nalrecl eye a} finely_granular appearance. Colonies

spherical or elongate, when young, ^soon becoming saccate and clathrate, with colourless envelope. Cellsspherical,rather ^small, 3-7 ,u indiameter,^more

or lessdenselyaggregated, cell contents paleblue-greenor ollvegreen, with vacuoles.-Fig. 2.

Hab. In the plankton^of ponds,lakes,caysing "water-bloom."

.

6sawano-ike

^and Hirosawano-ike,Kyoto

(May

^Ig37)･

3.

Microcystis flos-aquae (WrrTR.)

^{KiRcHN.in ENGLER u. PRANTL.,Nat.}

Pflanzenfam I Teil,

Abt.

i ^a, p.

s6,

^{f.4g, Igoo; ScH]srrDzEinBet.}

Jahrb.

32,p. S7, ^ig03;

LEMM.

in Ark. Bot. 2, No. 2, p. ^{I46, igo4;} DE ToNz,

SylL AIgar.

s,

p. 86, Igo7; TnDEN in Proc.^Biol･Soc. ^{Wash. 2!,.p. Is3,}

Sept. 1937.

Ig38; LEMM-, Algen I inKryptegamenfl. Mark

TimEN,

Myxophyceae, Minh. Alg. I.p. 3s,pl.

OKAMuRA Synopt.List

Jap.

^Alg･ p. ^{3o4, lgl6;}

i3, p.

7,

^{Ig22; CRow in}

Journ.

^Bot.6I,p. ^I3g,

ceae in PAsciiER,Stisswasserfl,I2, p.^6o,f.4I, Brit.Freshw. Alg. p.462, ^lg27; SKvoRTzoW

Ig27 ;GEiTmR,

Cyanophyceae

inRabenh.,

Kryptogamenfl,

e,

C

^ig3o;

^ALMA

^{in Pap. Mich.} Acacl.

Sc.

Is,

Alg. U.

S.

_p. 6o, ig33;TAyLoR inPap.Mich.

CEDER£REuTz inAct, Bot.Fenn, iS, p. ^{io6, ig34} Inst.Biol.z p.

73,

^{ig36; HiRosE in}

Journ･

I937-

f]biptrstis77bs-aei-taeWirTR.in

WITTR.

et NoRDsT.,

LEMM. in Ber. deutsch･ Bot,Ges. i8, p･g6, ^igoo.

^R

flos-aeztae

^{WiTTR. fl} autumnaths Wirm.

^{Coloniesmore or lessspherical or oblong,}

envelope, ofteu several lyingclose together, pale

rather small, 3.s-6ptⁱⁿ diameter,densely aggregated

bluish green, ^with vacuoles.---Fig. 3･ ^{･ Hab. Common planktonin lakesand bogs.}

Mizoroga-ike,Kyoto

(June

^ig33)･

^{HANsGiRG observed cells which were often twice as longas}

in niy samples that isnot the case. The ^colonies are variable in there are many intermediateforms between th{s_{species and}

M.

KtiTz.So itisoften difficultto distinguishfronione another.

^4.

Microcystis

_pulverea

(WooD)

^MiGuLA, Kryptogarnenfl._p. 36, DE ToM,

Syll.

AIgar.

s,

p. g2, ^igo7

;'

^{I.EMM., AIgen} I in

Mark Brand. III,p. 77, ^rgio; TrmEN, Myxophyceae, Minn. AIg.I,

Iglo; CRow in

Journ.

^Bot･6I,p. ^{I4o, Ig23;} GmTLER,

PAscHER,

SUsswasserfl.

I2, p･62, ig2S SKuJAinAct. Hort. I･]ot Latv. i, p. ^{Iso, ig26;} GEiTLER,Cyanophyceae inRABENn,

i4, p. ^{I43, Ig3o; ALMA} inPap. Mich.

Acad.

Sc. IS, p.

7,

^Ig32;

Freshw.

^{Alg. U.}

S.

_p. 6i, Ig33; KossrNsKAJAin Act. Inst.Bot.

URSS, Ser.II,Fasc. I,p･4s, ^Ig33; CEDERcREuTzin Act. Bot.

P･ ^{I07, ig34;} KossiNsKAJAin Act, Inst.Bot Acad. Sc.

URSS,

iicLsc.2, P. 92, I93S.

f7?2trocacc7as

p?zalveteers

^{WooD, Contr.Hist.}Freshw. AIg. N.

79, ^ls72･

^{Anacrslis,eimtca WoLLE, in Bull.Torr.I3ot.Cl.6,} p. ^i82,

^A.

^pulve,e7ts (WooD)

^{WoLiE, Freshw･ Alg. U･} S._p. 32g,pl.

181

Brand.III,p.

75,

^i9iO;

2, f. _I8, Iglo; HIGAsm in SMi[iiinArk･ Bot.^I7; No.

i923;

GmrER,

Cyanophy-

42, ^I92S; WEsT & FRITscH, in

Journ･

^Bot･6S, p･ ^ig6,

^I4, p.^{I38, £}

S9

P, 7,^i932;

SmTH,

Freshw.

Acacl.Sc.ig, p. ^{230, i933;}

; Li in Bull. Fan. Mem.

Jap･

^{BoL r3,} p･ 464, ^£ 3, Alg. ^{exs. Nr. 2g8;}

r.c. Nr･

5g9ny

'

with an indistinctlyIimited green.Cellsspherical,

^{; cell contents} pale

broacl,but ^{shape and}

^aeruglnosa

^lg07;

Kryptogamenfl.

p.35, Cyanophyceae in

Univ.

Kryptogamenfl.

SMIEH, Acad. Sc.

Fenn. I5, Ser. II, Amer･ _p･

^I877･

^2IO, fl

The Japanese Society for Plant Systematics

NII-Electronic Library Service

The JapaneseSociety for Plant Systematics

ls2

Vol. Vl.

25, I887.

^Plantmass pulverulent,^whitish

blue-green

^incolour.

Colonies

^spherlca!

or obrong, usually surrounped by a diffluent,

hyaline

^{envelope, composed of}

very numerous ce11s.Cells^usuarly

globose

^or subglobose, ^sometimes oval ^or angular, very smatl, 2-3pt in

diameter,

densely aggregated; cell contents

pale blue ^or olive green,^without vacuoles･-Fig. 4.

Hab.

Mostly

_planktonicⁱⁿ _ponds ^and･pools.

Mizoroga.lke, Kyoto

(May

^{ig33) ;}Kanayama-ike, Mt.

Norikura-clake,

prov. Shinano

(Aug.

^ig33)･

s. Microcystis

pulverea

(WooD)

^{MrGuLA var.}

^incerta (IjEMM.)

^{CRow in}

New ^{Phyt. 22.} p.66,^ig23; iu

Journ.

^Bot.

^6i,

p･^i4o, ig23;GEiT=ER,

Cya-

nophyceae in PAscHER, Stisswas$erfl.^I2, p.62, fi47, ^ig25; SKvJAin

Act.

Hort.

Bot.Univ. Latv.i,p. ^{iso, ig26;} GEimjF.R,,Cyanophyceae inRABENH･,

Kryptogamenfl. i4, p, ^i44, fi64, ig3o;A=MA lnPap.

Mich.

^{Acad. Sc.rs,} P･

7,

^I932.

^{uz in.cetla Lemm. inAbh.}

Nat.

Ver. Brem. i7, p.

342;in

^{Ark. Bet.}

2, No. ^2, p. ^I46, Igo4;AlgenIln Kryptogamenfl. Mark Brand. III,_p.

76,

^fl12

(p.

^{44), Iglo; WEsT & FRrTscH.Brit.Freshw.}

^Alg.

^{p.462, Ig27;}

SKvoRTzow

in

Journ.

^{Bot.6s,pp. ig6 & 2so, ig27;}

^SMiTH,

^{Freshw. Alg.}

U. S. p. 6I, ^I933･

1]bij,crstisineertaLEMM. inForschungsber. Biol･

Stat.

P16n

7,

p･ ^I38,

I8gg; inBer. deutsch.Bot.Ges. i8, p.

g6,

^lgoo.

^{Coloniesspherical or} ellipsoidie, surrounded by a rather distinct^envz)- lope･

Cells

spherical, very much ^small, i-2 ptindiameter,denselyaggrega-

ted; ,cellcontents blue-gteen.-Fig.s.

^Hab, In ponds.

Mizoroga-ike,Kyoto

(June

^{ig33). New to}

Japon.

^6.

Microcystis

parasitica^Ktirz,,Phyc. germ. ^{p. i7o, i84s ;}Tab. _phyc.

I,p･

7,

^{pl･g, i84S-4g; LEMM･,}

Atgen

^{I in} Kryprogamenfl. Mark Brand.

III,p. 76･ ^Igio; GistTLER,

Cyanophyceae

inPAscHER, Sttsswasserfl.r2, p.

62,f.48, Ig2s;SKuJtL'in Act. Hort. Bot.

Univ.

Latv. ^I, p. ^{Iso, ig26;}

GmTLER, CyanophYceae

^{in RABEiifH,,}Kryptegamenfl. I4, p･ ^{i'44, ft}63 ^c,

I930.

^{Plant mass} btue-green.Coloniesirregularly^{shaped, with} lndistinct,

corourless envelope. Cellsslihefical, very small, I･s-2 p in^diameter,densely

aggregated; cell contents blue-green,withont vacuoles.--Fig.

6.

Hab. Epiphyticon other water-plants in ^{stagnant water.}

Mizoroga-ike,Kyoto

(May

^{ig37). New to}

^Japan･

-

Sept. 1937.

₁₈₃

ig-liz.e..

t/ tt tl/ ttttttttt"tt

'f''

^{Fig. i-7. i,} Migcrecystismarge'nata (MENHGIr.)^KtiTx

(^X330)･ 3, M: ftas"sttaq(WlrTR).

(66o). ^5,1lf:_putvepen(Woon) MTG. var. ince,'ta(I,EMM,)^CRow.

^KVTz. (x66o). 7,4phnecql)sct^{KooibdersiSTEboM.}

7.

Aphanocapsa

I fig･,Ig24; Gm:ER, Sr, ^Ig2S ;in R.ABEr"H., Colonies^$pherical,

Cells^spherical, small,

fours.--Fjg.7･

Hab. In _ponds.

Mizoroga-ike, Kyoto

(May

^{ig33). New to}

Japan･

Known from ^a _pond of

Java.

^8.

Aphanocapsa

elachista W. ^et G. S. WEsT var. planctonicaG. M.

SmTH, Phytopl.inl.Iak.Wisc. r, p.42,pl.3,f.3, ^Ig2o; GErTLER,Cyano-

phyceae in PAscEER, SUsswasserfl-^I2, _p. 6S, Ig2s;in RABENH.,Kryptoga- menfl. u, p. ^{is7, ig3o:} HiRosEin

Journ. Jap.

^{Bot. i3,} p.4g6, L 6,ig37.

^Coloniesirregulariyshaped, somewhat spherical or ellipsoidal ;^sheath

gelatinous,colourless, not lamellose.

Cells

_globose,^srnall, 2-3 ftindiameter,

solitary or inpairs,Iooselyarranged; cell contents homogeneous, whitish ,.. @ @

^,'

%

^@@oO@

.,,icaca@ @@ GP 'tt

^{'X, e@@ eQ op}

7h･.,. e @ @

.(x6oo). ^{2, M:} aei.uptnosq KsTz.

^KIR{MN. (x6oo).4,M: pvttrerea(Woor))MtGULA.

(x6bo).^6,M parasitica

Cx66o}.

Koordersi

_{STR6M, in Nyt Mag. Naturvid.6I,}

p. ^I28,

Cyanophyceae inPAscum, Stisswasserft.i2, p.6s,fL

Kryptogamenfl.i4, p. ^i5S, f.68, rg3o.

Iightgreen^to blue-green,2-3 mm. in diameter･

^{2-3 ttin}diameter,looselyarranged, ofteri intwos or

The Japanese Society for Plant Systematics

NII-Electronic Library Service

The JapaneseSociety for PlantSystematics

184

blue-green.-Flg.8.

Hah. In theplankton Mizoroga-ike,Kyoto g.

Aphanocapsa

i865 ;WoL=E, Freshw.Alg.

in

Journ.

^{L{nn.Soc.Bot.}

I9o7: BvcHANAN

in Proc.

Bot.8,No. i3, p. ^2r,

pl. ^2, f.7, ^Iglo; IEMM.

6o,

L

_g, iglo;

HiGAsHx ln CRow

ⁱⁿ

Journ

^Bot.6i,p.

Slisswasserfi.^i2, _p. 6S, f- T,p. ^{isr, ig26;} WEsT

&

I927: SKvoR^rzow in

Journ.

inRABor"H.,Kryptogameufl.

SC. ^IS, P.4, ^I932;

SwnTH,

inAct Bot.^Fenn. is, p.

Sc.URSS,

Ser.

II,^{Fasc. 2,} 4g6･f-8, ig37-

C;eccecklvrisGiez,dei f.

7

^{a, b, 8, i84s.}

Colonies^{spherical or}

envelope colourless.

Cetls

6ptindiameter,^solitaTy

Qr

blue-green.･-Fig.g.

Habi･ Ofteninthe

stones in^shallow pond Kanayama-ike,

io.

Aphanocapsa

49, ^{i86S ;}WoLrE inBull.

Algar.

s,

p.69, ^i907;

f 8, g, ^Iglo; GErT:ER,

f:

S8,

^I925;

CEDERc

^{REUTZ '} At"vL in^Pap. Mich. Acad.

p･ 6o, ^ig33; Lt in BulL

Colonies

irregutarly

spherical when free

lope

^{thick, not} lamellose,

meter, rooselyscattered, ' '

'

Vol. Vl.

^of lake and ponds.

(June

^Ig33)･

Grevillei (HAss.)

^{RABEriE.,FI.Europ. Algar.II,p.so,}

U. S.p.333,pL ^2Io, f.38,3g,^I887;W. WEsc ^2g, p. ^{!gg, 18g2;DE} TcxNT,Syll.AIgar.

s,

p.

73,

Iowa Acad.

Sc.

14, p.g, ^rgo8; BonGE inArk.

Igog;TimErv, MyxoPhyceae, Minn. Alg. I,p. ^28,

Algen

I inKryptogamenfr..Matk Brand. III,_p.

OKAMvRA.,

^Synopt.List

Jap.

^Alg. p.3o4,^igi6;

^{I38, Ig23;} (imTzER,

Cyanophyceae

^inPAscHER,

S7,

^{I92S ;SKuJAinAct. Hort. Bot. Univ.Latv.}

FRiTsGH,Brlt.Freshw. Alg. p. 464,

f

i87 A, ^Bot. 6S, p. ^{Ig5, lg27;}

GELTLER, Cyanophyceae

^i4,P-^iS9,

^£ 71,

^i930･;

AiiMA

inPap.Mich.Acad.

Freshw.

^Alg.

U. S.

_p. 6o, ig33;

CEDimcREvrz

^{I07, Ig34 ;} WoRoNicmN _,in

Act.

^{Inst.Bot.Acad.}

p. ^{i44, Ig35;} HiRosE in

Journ. ^Jap,

^{Bot.I3, p.}

HAss.,^{Hist. Brit.} Flr'eshw.Alg. p. 3i8,pl.

78,

semispherical, gelatinous,^{more or} lessconfluent ;

^{spherical or scmewhat} elliptical, rather small, 3- in_pairs,^crowded ;^{cell contents} finelygranular,

'

plankton, ^{among other aquatic} plants,^{or submerged}

water.

Norikura-dal{e, prov.

Shinano'(Aug.

^ig33).

^rivularis

(CAR]Nt.)

^{RABrcNH.,Fl. Europ.}

^{Algar. II,}

^p.

Terr.Bot. Cl.6,p. ^{i37, i877; DE}

ToNr,

Syll.

TimEN, Myxophyceae, Minn.

Alg.

I,p. ^2s, pl. ^2,,

Cyanophyceae

in

^PAscHrm,Sttssw.asserfi.i2, p. 66, ^m Mem. Soc. Faun. FI･Fbnn･ 5,p･ ^{iS4, ig2g;}

Sc･ ^iS, p.4, ig32;SMiTH, Freshw.Alg.

U.

S.

Fhn. Mern. Inst.Biol･7,p･ 7i, ^Ig36･

^{extend or} hemisphericalwhen attached, alrnost

floating^; gelatinous,^{often confluent,} brue-green; ^enve- coiourless.

Celrs･spherical,

^sma11,

s-6ps

^{india- solitary or in} pairs^{;cell contents} finelygranular,

Sept.

1937. 185

blue-green.-Fig.IO. '

Hab. In ponds ^{attached to submerged woods or stones, sometlmes} in

the plankton^{or among other} fioatingpl'ants.

Mizoroga-ike,Kyoto

(June

^ig33).

New

^to

^Japan,

^ii.

Aphanothece

stagnina

(S?RENG.)

^{A. BRAuN, in RABENH, Fl.Europl}

Algar.II,_p.66, I86s ;SETcHELL& GARDNR in Univ.

Cali £

Publ.Bot.I,p.

i8o, igo3; DE

ToNi,

Syll.AIgar.

s,

p.

76,

igo7;TlmEN, Myxophyceae,

Minn. Alg. I,p. 32,p!.^2, fiIs, lglo; LEnm.,AlgenTin Kryptogamenfl.

Mark Brand.III,p. 7i,L Ii

(p.

^{44), igio; CRovvln}

Journ-

^Bot.6i, p.

I39, Ig23; GEiTmsR,Cyanophyceae in PAscHER,Stisswasserfl.I2, p.7o,f:

6s, ig2s; SKvJAin Act. Hort. Bot,Univ. Latv.I,_p. rs2, ig26;GEzTLER,

Cyanophyceae inRABENH.,Kryptogamenfl.I4, p.^r64, f.

72, 7s

^{a, b, Ig3o;}

AL}fA

inPap. Mich.

Acad. Sc.

^Is, _{p. 4,} ^ig32; SMiTH,･Freshw.Alg. U. S.

p. 6S,

f.

^{2i A,} ig33; 'IZAytJoR

in

Pap.

Mich, Acad, Sc. ^ig, p. ^{228, Ig33;}

CEnancREuTzinAct. Bot. Fenn. ^is, p. ^{ro8, ig34} ;KossiNsKAJAinAct. Inst.

Bot.Aead. Sc.URSS,

Ser.

II,Fasc.2, p.g2, ig35;WoRoNicHrN, Ibid._p.

I44, I935･

Cbccocthloris^stagnina

SpRENeEL,

Linn.Syst.Veg. IV, ^i, p,372^;

KVTz.,,

Tab. phyc. ^i, TaL 18, F･ 3,^i84S-49･

AptanothecenenmpothfiiGRuN. in RABENH. Fi.Europ.AIgar.2, p.6S,.

I865.

^A'.nfooreana

(HARv.)

^LAGERH･,WiTTR.-NoRDAT･AIg. exs. Mr. 6gs.

^A.

masina

^{A. BRAvN, in}

^RABENH.

^{Aig. Europ.,Nr. Is72.}

^A. coerullescens A. BRAuitT,in RABENH. Alg. Europ.,Nr. iS72.

A. piscinath'sRABENH.,Ft. Europ. A]g. 2, p.66.

^A. tstberczdosa

(AREscH.)

^{FoRTi, in DE ToNi, Syll.}

^Algar･

S,p･ 7g,

I907･

^Coloniesgelatinous,^{oblong, elliptical or nearly} globose, pale blue- green.Cellsoblong-oval, 3.spsinbreath,about IY2 times as long^as broad;

cell contents blue-green.--Fig･II.

^{Hab. In ponds, at firstattached to other aquatlc} plants, laterfree floatingon the surface of. water.

Kanayama-ike, Mt. Noril<ura-dake,prov. Shlnano

(Aug.

^{ig33); Aji-}

ike,U]jl,prov.^Yamashiro

(July

^{ig37). New to}

Japan.

^{The sheath of thisspecies ofren contains crystalls ofcalclum compound.}

^{i2. Aphnothece}

^Nagelii

WARTMAr"r",inRABENH.,Fl.Europ.Algar.II,p.

6s, I86s; DE ToNi,

Syll.

Algar. s,p･ 77, ^lgo7; TILDEN,Myxophyceae,

Minn. Alg. I,p. 32,pl.^2, f 14, igTo;LEMM.,

Algen

^I

in

KryptogamepfJ.

Marl< Brand. III,_p, 7o, iglo;STRb'M in NYt Mag. Naturvld.6i, p. 76.

The Japanese Society for Plant Systematics

NII-Electronic Library Service

The JapaneseSociety forPlant Systematics

186

Vo!. VI.

Ig24;

GErTrER, Cyanophyceae

^inPAscHER;Stisswasserfl.^I2, p.

74,

^lg25;in RABENn･,Kryptogamenfl. i4, p.^{I72, Ig3Q; HXyRiilrginMern.} Soc.Mun. Fl.

Fenn.

7,

p. ^{17s, Ig3I;} KRiEGER inHeclwigia

7o,

^{p. I5I, I931･}

^ColQnlesgelatinous,yellowish

brown

^{or olive} in ^colour. Cells^{oval or}

obiong, armost spherical after division,4-4.sptinbreath,6-8 ptinlength, irregularly^scattered, rahter denselyaggregated ; ^{sheath not} distlnct,diffIu-

ent; cell cotents pale blue-green.-Fig.^i2･

Hab. Molst ^{mossgs on rocks･}

^Mt. Norikura-dake, prov.Shinano

(Aug.

^{ig36). New to}

Japan,

Fig.8finrl2.

a,eviltev'(HAss.)^{RABENH. iq}

CSPRENG.)^{A. BRAUN.}

8,

4phanecmpsce

eeto:ntsta W. et G. S.WBsr var.

planctondaa

^{SMTTfi. b A}

A.^rivutaris (CAIua')RAEmiu. tl,uSphanathece stagnt'na

^i2, A.iNUgetii^Wartmann. (Altx66o).

^i3. Aphanothece ^microspora

(MENEGH.)

RAeiirifH.,Kryptog.-fl.Sachs.,p.

76,

^{I863; Fl.Europ.Algar･II,p･64, i86S; RzcmER inBib.Bot.42,p.3,}

I8g7;.SAmmERs in Proc. Wash. Acad･

Sc.

_3,p･ 3g7, ^Igol; SET(LHE[.L&

Gmo

inUniv. Carif ^Publ. Bot.,i, p. ^{i8o, igo3;} CoLttNsinRhodora 6,_p. ^23o, Igo4; TzLDEN,Myxophyceae, ^{Minn. Alg. I,}p.3I,^Iglo; LEMM., Algen I inKyptogamenfi. Mark Brand.M, _p･ 7o, ^igio; GmirzER,Cyano-

Sept. 1937.

187 phyceae ⁱⁿ PAscHER,Slisswasserfl.I2, p.74, ^Ig25; CEDERcREvrzin Mem.

Soc. Fhun. Fl.Fenn._s, p. ^{is4, Ig2g;} GEiTtisR,Cyanephyceae inRABENH.

Kryptogamenfl･I4, p. ^i7o, fl77, ^ig3o; CEi)ERcREuTzin'Act. ^Bot. Fenn.

I5, p･ ^{Io8, ig34;} HiRosE in

Journ･ Jap.

^{Bot. i3,} p･ 4g7,f,II, Ig37.

Coloniesgelatlnous,pale ^olive

green

^{or yertowish}

green,

^often globose

or oblong, lateritregularin^shape, floating.Cellsoblong-cylindrical, 3-3･5p inbreath,2-3 times as long as broad,6-8" inlength,^solitary or inpairs, looselyscattered; cell contcnts blue-green.---Fig.i3･

,

^, Hab. Oh the margin of ponds.

Kanayama-ike, Mt. Noril<ura-dake,prov･Shinano

(Aug.

^ig33)･

^i4.

Chroococcus

_turgidus

(KtiTz.)

^{NXG., Gatt.einz. AIg. p. 46, i84g;}

])icfaEⁱⁿ

Journ･

^{Linn.Soc.Bot i7,} p. g, ^i88o; WoLrE, Freshw. AIg. U.

S. p･ 334,pl･^2Io, f.4o, 4I, ^I88pt SAuvAGEAv in Bull. Soc. Boc. 3g,p.

cxri, I8g2; X]V.WEsT in

Journ.

^{Linn. Soc. Bot.2g,} p･ ^{Ig8, i8g2;} W.

&

G.

S.

^WEsT, ibld.3o,p. ^{27s, i8gS;in}

Journ.

^Bot.35,p.3o2.^I8g7;

CHoDAT ln

Bull.Herb. Bois.

s,

p. 3i3, ^{i8g7; G.}S.WEsT in

Journ.

^Bot･ 42,p-^2g3,

igo4 ; IiiMtsr.in Bot.

Jahrb.･34,

p. 6i4, igos ;DE ToNi,･Syll.Algar.

S,

_p..

ii, Igo7; LErm.,AlgenIin

Kryptogamenfl.

^{Mark Brand.} III,p. s3,f.7

(p.

^{44), rglo; TnpEN,} Myxophyceae, Minn. Alg..I,_p.

s,

pl.^I, f.3,^igio;

HzGAsm

inOKAMuRA, Synopt.list.

Jap.

^Alg.p.3o4,^igl6; CARTER in

Journ.

.Linn.

Soc.

Bot.46,p. 4g, ^ig22; STR6M in Nyt Mag. Naturvid.6i,p. ^i37,,

Ig24; ibid.62,p. ^{I7g, Ig2S;} GErTLER,

byanophyceae

^inIIAscHER,

^Silsswas-

serfl. I2, p. 77,f.7i, ^ig2S; SKiuAinAct. Hert].Bot.Unlv. Latv.i, p.

is2, Ig26; WEsT & F?zTscH,Brit.Freshw. Alg. p. ^464, f.ⁱ⁸⁸ B, rg27;

SKvoRTzowin

Journ.

^{Bot. 6S,}p. ^{Ig5, Ig27;} CEDERcREtn･zin Mem. Soc.Faun.

Fl. Fenn. s,p. ^{is4, ig2g;} G]"TLiiR,Cyanophyceae in RABENH,,1<ryptoga-

menfL 14, p. ^228,

^£

^iog b, iio, ig3o; KRrEGER in Hedwigia

7o,

^{p. i4i,}

Ig31; CimERcREuTzinMem. Soc.Faun.Fl.Fenn.

7,

^{p,246, ig3i;AiiuA in} Pap. Mich. Acad. Sc. Is, p. s, ^rg32; DRouET inI3ull.Torr.Bot.Cl. sg,

p. ^{2g6, ig32;} OKADA in Bull.Biogeogr. Soc.

Jap.

^{3,p. S7,}pl.

S, Ls,

Ig32;

TAyiDR in?ap.M{ch.

Acad.

Sc. Ig, p.^22g, ig33;SMiTH, Freshw.Alg. U.

S. _p. s8,f.8 A, Ig33;

CEDERcREuTz in

Act. Bot, Fenn. IS, p. ^{iog, ig.34;}

Iz in Ling. Sc.

Journ.

^{r4, p.} 47o, ^Ig3s;

KossitsrsKAJA

in

Act.

Inst.Bot.

Acad. Sc.URSS,

Ser.

II,Fasc.2, p. g2, ig3S;WeRoNrcHiN, Ibid･_p･ i44;

h inButl.Fan Mem. Inst.Bior.7,p.7i,^{ig36; HiRosE}

in Journ. Jap.

^Bot.

I3, P･ 497,

^£

9, ^{i937･ '}

thotococcus^luiyimdis

KtiTz,,

^Tad. _phyc. I,pl.^6, f.t ^{a et}

P,

^r84S-49･

Cells^spherical, oblong-ellipsoid _or more or lessangular from compres- sion after division,Io-3opt, withont sheath, I8-4oA, wlth sheath, indla-

meter, solitary or more _often unlted incolonies of 2, 4 ^{or eight ;sheath thick,}

The Japanese Society for Plant Systematics

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The JapaneseSociety forPlant Systematics

lss

Vol. VI..

' 'usually

lamellose,colourless,

hyaline

;^{cell contents} homogeneous, _pale^blue- green,latersometimes becoming brownish.-Fig. ^{i4 a,} b.

Hab. Occurs inquantityin Sphagnum-bogs and alsofrequentinmaF shes.

Mizoroga-ike,Kyoto

(May

^{ig33, March ig34,}

June

^{ig37) ;Kanayama-}

ike, Mt. Norikura-dake,prov. Shinano

(Aug.

ig33);O-ike, Onogawa-

mura, prov.Shinano

(Aug･

^ig36)･

^is.

Chroococcus

^rninutus

(KtiTz.)

^NXoEu,

^Gatt.

^{einz. Alg.}

^P.

^46,i84g;

VS,'.& G. S. WEsT in

Journ.

^Bot.3s,p. 3o2, ^i8g7; DE ToNi,Syll.Algar.

5,p. ^{i4, rgo7 ;}Tzr;DEN,Myxophyceae, Minn.

Alg.

I,p.

7,

^igio; LEM"i.,Algen I in

Kryptogamenfl.

Mark Brand. III,p.s4,^igio;

SMim,

Phytoplankt･inld

11ak.Wisc. i, p.^28, pl.^I, fiI, ig2o;CARTER in

Journ.

^{Linn.Soc.Bet.46, p･}

So,^ig22; CRow ln

Journ.

^Bot.6I,p.^{Ii4, lg23;} WiLm iiiNyt Mag. ^Matur-

vid. 6i, p.

76,

^{igi4; STR6M, ibid.62,} p.^i77, pl.

7,

^{f.8-i3, ig2S; GEn'LER,} Cyanophyceae in?AscEiEai,

SUsswasserfl.

^i2, _p.

7g,

^fl74,^i92S ;SKTuAinACt Hort. Bot.Univ. Lztv. r,p. ^{Is2, ig26;} CEDm{RcREu:'zinMem. Soc.Faun.

FL Fenn.

s,

p. ^{is4, ig22; ibld.}7,p. ^{246, ig3i;}

GmTrER,

Cyanophyceae lnRAsE}nt.,Kryptogamenfl.14, p. ^232,

^£

^{I12 a, ii3 c, Ig30;}

AmrA

^inPap.

Mich. Acad. Sc. is, p. s, ^ig32;

OKADA

inBull.Biogcogr.Soc.

Jap.

^3,p.

,SS,Plny5,

^£

^{i5, I8, ig32;} KossrNsK,uA inAct. ^Inst.Bet. Acad. Sc.URSS,

･Ser.II,Fasc.2, p. ^46, ig33;TAyLoR inPap.Mich.Acad. Sc. Ig, p. ^22g,

Ig33; S"mv, Freshw,Alg.U.

S,

_p.

_s8,

Ig33; CEDERcREuTzinAct.Bot.Fenn.

iS, p, ^{Iog, lg34;} Li ln Ling.

Sc. Journ.

^i4, p.47o, ^{ig3S; in Bull. Fari} Mem. Inst.Biol.6,p. ^{I4I, Ig3S;} KossiNsKAJA in Act. Inst.Bot.Acad.

URSS, Ser.il,Fasc.^2, _p. g3, Ig3s;WeRomianN, ibid.p.^i45;Li inBulr.

Fan ^Mem. Inst.Blol.7,p. 7I, ^{ig36･ '}

jCbeoloceccus^minttters KtiTz.,Tabl phyc.I,Taf-Vt i84S-4g･

Cells^{spherical or oblong, more or} less^angular, without sheath s-8pt in d{ameter,with sheath 8-ilpt,usually in groups^{of twos, sometimes soli--}

tary or associated with 4 ^or 8,^{not united} iAtolarge^{colonies; sheath some-}

times orbicular,

hyaline,

^distinct,colourless, not stratified; cell contents

homogeneous or granular,^pale blue-green^or yellowish.--Ng･^Is.

Hab. Inpools,^{among other algae, often} inthe plankton.Also on damp

critfs.

Kanayama-lke,

Mt. Norikura-dake,prov.^Shinano

(Aug.

^{ig33) ;Moist}

mosses on damp cliffs, near Shirahone,_prov.

Shinano (Aug･

^ig36).

^{Cells show vety clearly that} divisionisby constriction.

^i6.

Chroococcus Iimneticus

^{I.aMM. var. elegans} SMiTH,^Phytopl. inl.rak.

Wisc･ I. p. 3o,pl. ^I,f 8, Ig2o; Gmi'=ER,Cyanophyceae inPAscHER,Stiss-

'

--

Sept.

1937. 189

wasserfi. I2, p. 84,

fi

^83, Ig25;in RABErgH.,Kryptogamenfl ^I4, _p. ^23S, C

ii3 b, ig3o; Li in Ling.Sc･

Journ.

^i4, p.^{47o, ig3S.}

^{Coloniesspherical or ovoid, composed of 4 to 32 cells, freefioatingi}

embedded in^{a copious,} hyaline,unlamellated, gelatinous^envelope･ Cellshemi-

spherical tospherical, 2o-22 pt,^{without sheath, 22-2s} ",^{with sheath,} indiam-

eter, each cell has a distinctsheath ;^{cell contents} greenishbiuegreen.---Fig･

I6. '

Hab･

In the piankton.

Mizoroga-ike, Kyoto

(July

^{ig33). New to}

Japan-

^i7-

^GIocothece

^rupestri$

(LyNGB.)

^{BoRN .var.} tepidariorum

(A.

^Br.)

}IANsG.,Prodremus 2, p. ^i36, L 46, ^I8g2; DE ^ToNi, Syll.Algar.s,p･64,

igo7;llLDEN, Myxophyceae, Minn.Alg.T,p. ^{26, Iglo;} GEiTiER,Cyanophy-

ceae inI'Asct{ER,

SUsswasserfl.

I2, p. g7, flIoo, Ig2S; inRAm]NH., Kryp- togamenfl. 14, p. ^22I,

f.

Io8, Ig30.

^{Colonlesolive bluegreen, often widely expanded, familiescontalning}

usually two or four cells. Cells^{elliptical or} cylindrical, after divlsionalmost

spherical,

s-6

ptbroad,8-i2 ptlong,without sheath ;^{sheath often stratified} ;

cell contents finelygranular,blue-green.---Fig.i7 a, b.

^{Hab. On}

flower-pots

in the greenhouse,^{Bot. Inst.,Kyoto Imp. Univ.}

(May

^{ig37). New to}

Japan.

^i8.

Coelosphaerium Nagelianum

UNGER. Denkschr.Ak. Wiss.Wien. 7,

I8s4; LEMM. in Ark. ^'Bot.2, No. 2,p. ^{I47, igo4;} GEn'mR, Cyanophyceae in PAscHER,Siisswasserfl.I2, p. ^iol, f.IIS, Ig25 ;SKrijAinAct.Hort,Bot

Univ. Latv. i,p. ^{is5, lg26;} X)VEsi'& I;'RiTscH,Brit.Freshw. Alg. p.^46i,

Ig27 ;GEn'mR, Cyanophyceae inR]u]oNH.,KryI)togamenfl.^I4, _p.^244,

L

^I2I

a, b, e, i22 b,^{c, ig3o;}

ALMA

in Pap. Mich. Acad. SQ.^is, _p･ S, ^ig32;

DRovET ⁱⁿ Bull.Torr.Bot.Cl.sg,p.^{2g6, ig32;}

SbuTH,

Freshw. A]g.

U.

S.p. 66,

fl

22 B, lg33; TAyLoR in Pap. Mich. Acad. Sc. ig, p.^{22g, ig33;}

CEDERcREvTz in Act. Bot.Fenn. 1s, p. ^IIo, Ig34; WoRoNicmN inAct Inst.

Bot.Acad. Sc.^･URSS, Ser.II,^Fasc. 2, p. ^{i4s, ig3s;Li} inIBulLFan Mem.

Inst.

Biol.p. 72, ^Ig36; }IiRosEin

Journ. Jap.

^{Bot- I3,} p.

S7o,

^{f.i6, ig37･}

(;oimpthespa:ieritiAlttsrelihna

(UNGER)

LEM"[.,Algen TinKryptogamenfl.

Mark Brand.III,p. 8o,f;ig

(p･

^{44), iglO- ･}

^{Coloniesspheticat,} elllpsoidil, 1<idne>n-shapedor irregular,so--iooptin

diameter; envelope more or Iessthick, often radialiy striated, colourless.

Cellsobovate or ellipsoidal, 3-s" inbreadth,7ptⁱⁿ length,denselyaggre-

gated; ^{cell contents} btue-green,with vacuoles.-ffg. i8.

^Hab. Planl<toniein_ponds.

Mizoroga-ike,Kyoto

(June

^[g33)･