Flora Desmidiarum Japonicarum IV
Flora Desmidiarum Japonicarum IV
Flora Desmidiarum Japonicarum IV
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208 Minoru HIRANo: <strong>Flora</strong> Desmidiarurn japonicarum<br />
angulis apicalibus cum spina longa robusta divergenta; a vertice V'isae<br />
ellipticae, polis spina robusta longa ordinatis;' Membrana glabra. Long.<br />
sine spin. 32.3pa, Lat. sine spin. 30p, Lat. isth. 7,7pa.<br />
Hab. Hokkaido: Shizukari in Oshima. (New to Asia) (Pl. XXIX, f. 15)<br />
Distr, Europe.<br />
Arthrodesmus crassus W. & G. S. WEsT in Monogr. Brit. Desm. 4, 102, 1911;-<br />
BoRGE Ark. Bot. 23A, 40. 1930; HIRANo Bot. Mag. 66, 2)6, 1953. •<br />
Cellulae parvae, circiter longiores quam latiores, modice constrictae,<br />
sinu late aperto et leviter acuminato ad apicem ; semicellulae obtrapezifor-mes,<br />
marginibus lateralibus convexis, apice leviter convexo vel nonnumquam<br />
paene recto, angulis apicalibus acutis cum spinis brevibus divergentibus;<br />
a vertice visae late ellipticae, polis acutis spinatis, spinis brevibus. Long.<br />
17-22pa, Lat. 14-21.5pa, Lat. isth. 8.6-11pa.<br />
Hab. Hondo : Mt. Komagatake in Ugo ; Katninotake in Etcha ; Shimonokoike<br />
of Shigak6gen in Shinano; Tanuki-numa in Suruga. (Pl. XXIX,f. 39År<br />
Distr. Japan, Europe, Canada.<br />
Arthrodesmus controversus W. & G. S. WEsT in Monogr. Brit. Desrn. 4, 103.<br />
1911; ALLORGE Rev. Alg. 5, 363. 1930; HIRANo Bot. Mag. 66, 206, 1953.<br />
Cellulae parvac, circiter tam longae quam latae, modice constrictae,<br />
sinu aperto et paene rectangulari extremo leviter acuminato; semicellulae<br />
late cuneatae vel obverse subtrapeziformes, marginibus lateralibus et apicalibus<br />
convexis, angulis apicalibus subacutis et in spinam brevem divergentem<br />
productis ; a latere visae circulares ; a vertice visae ellipticae, polis subacutis<br />
cum spinis brevibus; membrana glabra. Long. 14pa. Lat. sine spin. 14pa,<br />
Lat. isth. 9.8pa, Long. spin. O,7pa.<br />
Hab. Hondo: Shimizu-daira on Mt, Nasu in Shimotsuke; Kamino-tanbo<br />
in Shinano; Mt. Hira in Oomi. (Pl. XXIX, f. 14)<br />
Distr. Japan, Europe.<br />
Arthrodesmus phimus TURNER in K. Sv. Vet. Akad. Handl. 25, 136, 1893; WEsT<br />
Trans. Linn. Soc. Bot. 5, 192, 1902; Monogr. Brit• Desrn. 4, 104, 1911; HIRANo jap. Journ.<br />
Bot. 14, 229, 1954.<br />
Cellulae parvae, leviter longiores quam latiores sine spinis, profunde<br />
constrictae, sinu aperto et rectangulari ad apicem acuminato ; semicellulae<br />
obverse subtriangulares vel late cuneatae, marginibus lateralibus convexis,<br />
apicibus retusis, angulis apicalibus subacutis spinis robustis divergentibus<br />
ordinatis; a vertice visae angusto-ellipticae, polis rotundis cum spinis<br />
brevibus; membrana glabra. Long, sine spin. 19.4-21pa, Lat. sine spin..16i8-<br />
21pa, Lat. isth. 8.4-8,8pa, '