Flora Desmidiarum Japonicarum IV

194 Minoru HIRANo : Fl(rra Desmidiarum Japenicarum
numa in Mikawa; J6do-ike in Ise; Shinohara-ike, Fuse-ike in Oomi;
Mizoroga-ike in Yamashiro. (Pl. XXVIII, f. 29, 30) ,
Distr. Japan, Manchuria, Siberia, central China, Thailand, Ceylon,,,,whole
Europe, Greenland, N. America, Brazil, Africa, Madagascar, New Zealand.
Cosmarium Blyttii is widely distributed at the margin of bogs, swamps
and small lakes in mountain regions, but is not found in the sPhagnum
moors of alpine and subalpine regions.
forma lithuanica RACIB. in Wydz. Akad. Um. Krakow 10. 9, 1889. (rbprint) '
Semicellulae cum papilla in medio; membrana 6eter'is glabra. Long., et
Lat, 12.6k Lat. isth. 4.2pa. ,
Hab. Hokkaido: Kiritappu in Kushiro, (New to Asia) (Pl. XXVIII, f. 31År
Distr. Poland.
Cosmarium subcrenatum HANTZSCH in NoRDsTEDT Ofvers K. Vet. Akad. FOrh.
21, 1875; WEsT Journ. Linn. Soc. Bot. 33, 304, 1898; Ann. Roy. Bot. Gard. Calcatta. 6, 207,
1907 ; Monogr. Brit. Desm. 3, 228, 1938 ; DIcK KrypL Forsch. 1, 450, 1926 ; TAyf.oR Pap. Mich.
Acad. Sci. 19, 266, 1934; INsAM & KRrEGER Hedw. 76, 109, 1937; MEsslKoMMER Hedw. 77.
64, 1938.
Cellulae submediocres, leviter longiores quam latiores, profunde constrictae,
sinu angusto-lineari in vertice subdilatato ; semicellulae semicircularitrapeziformes,
marginibus lateralibus convexis crenatis, crenis 5 (cum angulis
apicalibus et basalibus), apicibus truncatis et 4-crenatis, crenis omnibus
cum duobus granulis minutis intra marginem, granulis in seriebus concentricis
et radialibus circa 3 ordinatis, in centro semicellularum cum granulatotumore,
granulis in seriebus verticalibus circa 5 (seriebus granulorum 4-5) ;
a latere visae ovatae, apicibus truncatis, lateribus in parte superiori retusis ;
a vertice visae ellipticae, lateribus utrobique cum tumore lato ordinatis.
Long. 22-34pa, Lat. 19.6-28pa, Lat. isth. 6.5-9pa.
Hab. Hokkaido: Okineppe in Nemuro; Kiritappu in Kushiro. Hondo:
Chukawa-ike in Uzen; G6no-ike in Hitachi; Hakkaku-ike in Kamifusa;
Ashinota-ike in Shinano ; Biwa-ike in Owari. (New to Japan) (Pl. XXVIII, f. 18)
Distr. Manchuria, Siberia, S. China, Burma, Sumatra, whole Europe,
Iceland, Spitzbergen, Greenland, Franz Joseph Land, N. & S. America,
Africa.
var. Nordstedtii SCHMIDLE in Ber. Dtsch. Bot. Ges. 11, 551, 1893
Var. crenis lateralibus 4, apice semicellularum truncato leviter retuso,
non undulato vel crenato, semicellulis cum serie 4 granulorum intra marginem,
cum granulato-tumore elliptico. Long. 25pa, Lat. 22.4pa, Lat. isth. 5.6pa. .
Hab. Hondo: Hakkaku-ko in Kamifusa, (Ne'w to Asia) (Pl. XXVM, f. 19År