Diversity and differentiation of the plants in the limestone areas in the Sino-Japanese floristic region

为了更好地了解中日植物区系石灰岩地区植物区系的多样性和分异，在中国西南地区以及台湾和缅甸进行了实地考察。通过考察，我们收集了3000多个植物标本馆标本。获得了分子系统发育研究和染色体数目研究的样本。标本被带回日本，并与通过以前的活动收集到的标本一起进行检查。多瓣标本由中国同行在中国昆明植物研究所进行研究。结果，在1995年和1996年期间从石灰岩地区获得的标本被鉴定并汇编成一个清单。发现了中国阿里山属2新种和缅甸台风属1新种。许多其他新物种也已被发现，并将很快被描述。基于等位酶多态性的群体分析和分子系统发育分析，对（肝科）、木兰花科、马先蒿科、天南星科、百里香科、半边莲科、木兰花科、马兜铃科和马蹄草属植物进行了种群分析。虽然石灰岩地区延伸得很广，而且相当连续，但很明显，植物是局部分化的。

For a batter understanding of the diversity and differentiation of the flora in the limestone areas of the Sino-Japanese floristic region, field expeditions were made in the southwestern China and also Taiwan and Myanma. Through the expeditions more than 3000 herbarium specimens were prepared. The samples for molecular phylogenetic studies and the study of chromosome numbers were also obtained. Specimens were brought back to Japan and examined together with those gathered through previous activities. Dulicate specimens were studied in the Kunming Institute of Botany, China, by the Chinese counterpart. As the results, specimens obtained from the limestone areas during 1995 and 96 were identified and complied into a list. Two new species of Arisaema from China and one new species of Typhonioum from Myanmar were found. Many other new species were recoginizxed and will be described soon. Population analysis based on the allozyme polymorphism and molecular phylogenetic analysis were made on (Hepaticae), Magnoliaceae, Pedicularis, Araceae, Thymelaeaceae, Lobelia, Aucuba, Aristolochia and Stachyurus. Although the limestone areas extend widely and rather continuously, it is evident that the plants are locally differentiated.