Flora Desmidiarum Japonicarum IV
Flora Desmidiarum Japonicarum IV
Flora Desmidiarum Japonicarum IV
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2os Minoru HIRANo : <strong>Flora</strong> <strong>Desmidiarum</strong> <strong>Japonicarum</strong><br />
3b. Semicellulae ellipticohexagonae ...................................... f. curta<br />
2b. Semicellulae elliptico-reniformes.<br />
3a Spina incurvata et convergens ................................... A. curvatus<br />
3b. Spina recta et divergens ....................................... A. subulatus<br />
4a. Margine dorsali et ventrali paene aequali ................. var. subaequalis<br />
4b. Margine ventre longiore quam dorso.<br />
5a. Apice valide convexo ........................................'.... f. typica<br />
5b. Apice paullo convexo .................................... var. Nordstedtii<br />
ld. Semicellulae rhomboides, spinis longis divergentibus ............. A. rhomboides<br />
Arthrodesmus Incus (BREB.) HAss. in RAi.Fs Brit. Desm. 118, 1848; WEsT<br />
Monogr. Brit Desm. 4, 90, 1911 ; SMITH Wisc. Bull. 57, 131, 1924; IRENEE-MARIE Nat. Canad.<br />
76. 39, 1949; HIRANo Jap. journ. Bot. 14, 229. 1954.<br />
Cellulae parvae, circiter tam longae quam latae vel leviter longiores,<br />
profunde constrictae, sinu late aperto; semicellulae obverse triangulares<br />
vel subtrapeziformo-triangulares, marginibus ventralibus convexis, apice<br />
recto vel leviter concavo, angulis apicalibus cum spina longa robusta<br />
praeditis, spinis alte divergentibus; a vertice visae ellipticae, ' polis spina<br />
longa robusta praeditis; membrana glabra. Long. sine spin. 15-20pa, Lat.<br />
sine spin. 14-17pa, Lat. isth. 6.4-8.4fo.<br />
Hab. Hondo: Mt. Hakkoda, Mt. Hachimantai in Mutsu; Mt. Kurikoma<br />
in Ugo; Hakuryu-ko, Mt. Gassan in Uzen; Naga-numa in Rikuzen; Oze<br />
in K6zuke ; Mohara in Kamifusa ; Mt. Naeba, Takayachi, Kurosawano-ike<br />
on Mt. My6ko in Echigo; Shigak6gen, Mt. Kirigamine in Shinano; Takashihara,<br />
Suhara-ike in Mikawa; Mt. Hira in Oomi. Kiushiu: Yabakei in<br />
Bunzen. (Pl. XXIX, f. 37)<br />
Distr. Japan, Siberia, India, Java, whole Europe, Iceland, Greenland,<br />
N. & W. America, New Zealand.<br />
forma minor W. & G S. WEST in Monogr. Brit. Desm. 4, 92, 1911; Ai.i.oRGE<br />
Rev. Alg. 5, 36,S, 1930;HIRANo Bot. Mag. 66, 206, 1953.<br />
Cellulae minores, semicellulae obverse trapeziformo-triangulares, sinu<br />
rectangulari, spinis apicalibus brevibus. Long. sine spin. 11-15pa, Lat. sine<br />
spin. 11-14.5pa, Lat. isth. 5.6@, Long. spin. 5.6pa.<br />
Hab. Hokkaido: Numanotaira on Mt. Daisetsu in Ishikari; Tomakomai<br />
in Iburi. Hondo: Mt. Hachimantai in Mutsu; Hirumo-numa, Koke-numa<br />
in Ugo; Mt. Kurikoma in Rikuchfi; Mt. Sugigamine of Zawo, Mt. Gassan,<br />
Mt. Azuma in Uzen; Numanotaira on Mt. Bandai in Iwashiro; Oze in<br />
K6zuke; Shimizu-daira on Mt. Nasu in Shimotsuke ; Mt. Naeba in Echigo;<br />
Kumonotaira, Tarobei-daira, Kurobe-gorodaira, Mt. Tateyama in Etchfi;<br />
Mt. Kirigamine, Mt. K•azafuki, Happ6-ridge, Tengunohqra in Shinano;<br />
Kotsutsumi-nishi-ike in Mikawa. (PL XXIX, f. 27) .
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