Systematics of Arisaema section Fimbriata (Araceae)

为明确各种属的特征和区别，本文对东京大学和日本其他植物标本馆的标本以及日本以外的植物标本馆的陆地标本，如K、L和P进行了比较研究。特别对中南和中南的物种进行了比较。同时还检测了活体材料的染色体数目。结果表明，在毛briata节中识别出25种不同的物种，并对其进行了描述和分类。rbcL基因序列的测定：利用东京大学植物园栽培的活体材料和科研资助出国考察获得的样品，测定rbcL基因序列。对天南星科的长丝云芝、薄板云芝、刺花云芝、钙化云芝、刺花云芝、白花云芝和天南星科的其他8种云芝以及许多种天南星科的外群进行了研究。根据所获得的数据进行计算机分析，构建了系统发育树。这对了解天南星科植物的进化具有一定的指导意义。包括阿利萨马在内的阿雷亚部落的单一性得到了高可信度的支持。原毛属植物被认为是单属植物，而不是单属植物。

A revision of specific delimitation : To clarify the characteristics and distinction for each species, specimens of the University of Tokyo as well as of other herbaria in Japan and also loand specimens from herbaria outside Japan, K,L and P for example, were comparatively studied. Critical comparison wes made especially on the species of S.China and Indo-China. Chromosome numbers of living materials were also examined. As a result, 25 species were recogniszed as distinct in sect. Fimbriata, which were enumerated with descriptions and a key to the species.Determination of rbcL gene sequence : Using living materials cultivated in the Botanical Gardens, University of Tokyo, and also samples obtained through overseas expedition granted by the Grant-in-Aid for Scientific research, determination of rbcL gene sequence was made. Arisaema filiforme, A.laminatum, A.roxburghii, A.calcareum, A.grapsospadix, A.prazeri, A.petelotii of sect. Fimbriata, eight species of other sections Arisaema, and many other species of Araceae as outgroups were examined. As a consequence of computer analysis based on the data obtained, a phylogenetic tree was constructed. It was suggestful to understand the evolution of Araceae. The monophyly of tribe Areae, including Arisaema, were suppoted with high level of confidence.sect. Fimbriata was suggested to be paraphyly, rather than monophyly.