日本に於ける蘚苔植物の分布域研究(第2報)
1953 年 2 巻 4 号 p. 144-150
詳細
1953 年 2 巻 4 号 p. 144-150
3. Duthiella speciossima BROTH. At present D. speciosissima is known from 55 localities, viz. 12 in M. Honshiu, 26 in S.W. Honshiu, 11 in Shikoku and 6 in Kiushiu respectively. So far as the present knowledge is concerned, this plant has its northern limit in Oouchi-mura, Fukuzawa-mura(both 36°31′L.N.) of Toyama prefecture of Uchikawa-mura(36°31′L.N.)of Ishikawa Prefecture and its southern limit in Koonose(32°17′L.N.)of Kumamoto Prefecture or Yokotani pass (32°17′L.N.) of Miyazaki Prefecture. The frequency of the species in each district is shown in the table 1. As will be seen from the map 3 and table 1,the centre of its disrtibution lies in S.W. Honshiu and Shikoku. According to the present knowledge, its highest elevation lies in Mt. Nagisen of S.W. Honshiu. [table] Area geogr. Endemic to Japan(S.W. part of Honshiu, Shikoku &amg; Kiushiu). 4. Neckera muratae NOG. At present N. muratae is known from 11 localities, viz. 1 in N.E. Honshiu, 2 in M. Honshiu, 7 in S.W. Honshiu and 1 in Shikoku respectively. So far as the present state of my knowledge is concerned, the species has its northern limit in Geibikei (38°59′L.N.) of Iwate Prefecture and its southern limit in Mt. Tsurugi (33°54′L.N.) of Tokushima Prefecture. The frequency of this species in each district is shown in the table 3. As will be seen from the map 4 and table 3,the centre of the distribution seems to exist in S.W. Honshiu. According to the present knowledge, this species is typical calcicolous plant and its highest locality occurs in Mt. Ootakineyama, attaining 830m above sea level. [table] Area geogr. Endemic to Japan (Honshiu &amg; Shikoku). 5. Mnium speciosum MITT. Mn. speciosum belongs to one of the most splendid mosses and is found in the dark floor of subalpine coniferous forest in Honshiu. The moss often bears numerous(mostly 3-6)capsules in one female plant and commonly associated with Pteridophyllum racemosum SIEB. et ZUCC. At present this moss is known from 16 localities, viz. 1 in N.E. Honshiu and 15 in M. Honshiu. So far as the present state of our knowledge is concerned, the plant has its northern limit in Mt. Hayachine (39°33′L.N.) of Iwate Prefecture and its southern limit in Mt. Fuji or Mt. Tekaridake (both 35°18′L.N.) of Shizuoka Prefecture. The frequency of this species in each district is shown in the table 4. As will be seen from the map 5 and table 4,the centre of the distribution seems to exist in M. Honshiu. According to my knowledge, its highest elevation lies in Mt. Akaishidake ascending to 2600m above sea level and its lowest elevation lies in Yumoto(Nikko)descending to 1500m above sea level. [table] Area geogr. Endemic to Japan(N.M. part of Honshiu). P.S. Numbers of dotts on the map do not always coincide with the numbers of localities. It is because of this-that even two or more different localities on a map scaled 1/50000 are to be shown only one dot on my distribution-maps.
