Taxonomic and Phytogeographic studies on the flora in the subtropical region of Japan.

由于京都大学植物标本室保存有少量的标本，1986年10月10日至18日，我们进行了前往西表岛、石垣岛和冲绳岛的植物学之旅。从岛上新采集的760张标本已被整理到植物标本馆。根据本室及以前的标本室资料，进行了分类学和植物地理学研究，发表了两篇论文。《泰国菊科植物分类学研究7》包括琉球群岛的亚热带成分，另一本是《日本伞形山胡椒及其近缘种的分类学注释》，该科在东南亚热带和亚热带地区非常常见。天女兰但是C。冲绳日本的植物群是在对琉球群岛的植物群进行分类学研究的过程中发现的 关于我们 北界的屋久岛与中国中部和喜马拉雅的亲缘关系较近，被认为是中日中部的一部分，喜马拉雅被认为是中日植物区系的一部分，而琉球则被认为是东南亚植物区系的一部分。然而，随着对东南亚植物区系认识的不断深入，该地区特有种的发现却很少，通过对琉球群岛广泛分布种的调查，发现在亚热带温度下，从东南亚向北一直扩散到琉球的有400种，占琉球植物群的五分之一。另一方面，在东南亚特有的物种中。此外，一些琉球特有种（没有与琉球密切相关的物种）被认为与中国中部和/或日本的物种有密切的亲缘关系。因此，琉球群岛的植物群可以被认为是中日植物区系的一部分。少

Botanical trip to Iriomote-jima, Ishigaki-jima and Okinawa-jima, the Ryukyu islands, has been carried out during the days from 10th to 18th on October in 1986, since there are a few specimens in the Herbarium at Kyoto University. 760 sheets of specimens newly collected from the islands have been sorted together to the Herbarium. Based on both our and previous materials in the Herbarium, taxonomic and phytogeographic studies have been carried out.Koyama published two papers. "Taxonomic studies in the Compositae of Thailand 7" includs the subtropical elements of the Ryukyu islands and the other is "Taxonomic notes on Lindera umbellata and its allied in Japan", of which the family is very common in tropical and subtropical regions of Southeast Asia.Having studied on the genus Cinnamomum, Murata has reached the conclusion that "Nikkei" is not "C. sieboldii Meissn. "' but "C. okinawaense Hatus." inthe course of his taxonomic investigation on the flora of the Ryukyu islands.The flora of Japa … More n, northwards Yaku-shima, which has close affinity to those of middle china and Himalayas, has been considered to be a part of Sino-Japanese middle China and Himalayas, has been considered to be a part of Sino-Japanese floristic region, while that of the Ryukyu has been recognised to be a part of Southeast Asiatic floristic region. As being increasing the floristic knowledges of Southeast Asiatic region, however, very few species have been found as a species endemic to that region.Making the check list of widely distributed species in the Ryukyu islands, we have found that there are 400 species, one-fifths of the Ryukyu flora, which are spreading northwards so far as the Ryukyu from Southeast Asia under subtropical temperature. On the other hand, in the species endemic to Southeast Asia. In addition, some species endemic to the Ryukyu there are no species closely related to the Ryukyu are recognised to have close affinity to the species confined to the middle China and/or Japan. Thus, the flora of the Ryukyu islands can be considered to be a part of Sino-Japanese floristic region. Less