Flora Desmidiarum Japonicarum IV

176
Minoru HIRANo : Flora Desmidiarum japonicarum
Distr. Japan, Manchuria, Siberia, Borneo, Europe, Greenland, Spitzri
bergen, N. & S. America.
var. compressum NORDST. in K. Sv. Vet. Akad. Handl. 22, 46, 1838; WFsT Journ.
Linn. Soc. Bot. 33, 307, 1898; Monogr. Brit. Desm. 3, 158, 1908.
Semicellulae depressae, apicibus latioribus et truncatioribus; a vertice
visae angustiores elliptico-oblongae. Long. 56pa, Lat. 53pa, Lat. isth. 19.6pa.
Hab. Hondo : Mt. Kirigamine, Daizah6shi-ike in Shinano. (New to Japan)
(Pl. XXVI, f. 16)
Distr. India, Europe, U. S. A., British Guiana, New Zealand.
var. elevatum W. & G. S. WEsT in journ. Linn. Soc. Bot. 33, 307, 1898; Monogr.
Brit. Desrn. 3, 159, 1908; HIRANo journ. Jap. LimnoL 16, 13, 1952.
Var. cellulis IS duplo longioribus; semicellulis relative altioribus et
angulis basalibus rotundato-subrectangularibus, partibus inferioribus semicellularum
in margine paene parallelis, Long. 53-62pa, Lat. 33-34pa, Lat.
isth. 13-14.5pa.
Hab. Hokkaido: Yafutsu, Tomakomai in Iburi; Shizukari in Oshima.
Hondo: Koke-numa, Hirumo-numa, Moritake-6tsutsumi in Ugo; Hizume in
Rikucha; Oishitano-junsai-tsutsumi, Chfikawa-ike m Uzen; Naga-numa,
Kirifushi-numa in Rikuzen; Kashima-cho in Iwaki; Akaiyachi, Nogiwanokwannon-ike
in Iwashiro: Ozegahara in K6zuke; Daimon-pass, Ashinota-ike
in Shinano; Tanuki-numa in Suruga; Kotsutsumi-nishi-ike in Mikawa;
Ishigaki-ike, Kanash6zu in Ise; Shinohara-ike, Fuse-ike in Oomi; Mizorogaike,
Takaraga-ike in Yamashiro. AKiushiu
: Ahira in Osumi. (Pl. XXVI, f. 15)
Distr. Japan, British Isles, N. America.
Cosmarium granulatum WEST in Monogr. Brit. Desm. 3, 164, 1908.
Cellulae magnae, circiter 1,ii- longiores quam latiores, profunde constrictae,
sinu angusto-lineari extremo amp!iato ; semicellulae reniformes, apice leviter
recto; membrana granulata, granulis in serie radiali ordinatis; a latere et
vertice visae ellipticae. Long. 117-118pa, Lat. 86-87pa, Lat, isth. 30-31p.
Hab. Hokkaido: Toyokoro in Tokachi. (New to Asia) (Pl. XXVI, f. 24,
Pl. XXVII, f. 30)
Distr. Europe.
Cosmarium ornatum RALFS in Brit. Desm. 104. 18tl8; MIGuLA Krypt. Fl. 2, 453,.
1907; WEsT Monogr. Brit. Desm. 3, 151, 1908; ScHuLZ Bot. Arch. 2, 13.?., 1922; SMITII Wisc.
Bull. 57, 34, 1924; INsAM & KRIEGER Hedw. 76, 104, 1937; OKADA ]ourn. !mp. Fish. Inst. 33,
116, 1939; HIRANo Act. Phytotax. Geobot. 12, 97, 1943.
'Celiulae submediocres, circiter tam longae quam latae vel leviter latiores,
profunde constrictae, sinu angusto-lineari in capite subampliato ; semicellulae