Bakalin Vadim A, Klimova Ksenia G, Nguyen Van Sinh
Botanical Garden-Institute, Vladivostok, Russia Botanical Garden-Institute Vladivostok Russia.
Institute of Ecology and Biological Resources, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam University of Science and Technology Ha Noi Vietnam.
PhytoKeys. 2020 Jul 16;153:111-154. doi: 10.3897/phytokeys.153.52920. eCollection 2020.
The eastern part of the southern macroslope of the Himalayan Range, Hengduan Mountains and the complex of smaller ranges from Hengduan southward to northern Indochina is one of the taxonomic hotspots of in Asia and the world. Two main circumstances hamper the understanding of taxonomic diversity of the genus in this area: the absence of recent and detailed descriptions and identification keys and the necessity of studying fresh material with surviving oil bodies in leaf cells. This study resulted in 1) eleven species confirmed for this vast land, 2) seven more taxa recorded but likely based on identification mistakes and 3) fourteen more taxa that are not yet recorded but may be expected in the area. All these taxa are discussed, and most of them are illustrated and described based on the types; an identification key is provided. The occurrence of North Holarctic taxa is hardly probable in the Sino-Himalaya, whereas new records of taxa known from the southern half of the Japanese Archipelago, Taiwan and southeastern mainland China are possible.
喜马拉雅山脉南麓大斜坡的东部、横断山脉以及从横断山脉向南延伸至印度支那北部的较小山脉群是亚洲乃至世界的分类学热点地区之一。有两个主要情况妨碍了对该地区该属分类多样性的理解：缺乏近期详细的描述和鉴定检索表，以及需要研究叶细胞中具存活油体的新鲜材料。本研究得出：1）在这片广袤土地上确认了11个物种；2）记录了另外7个分类单元，但可能基于鉴定错误；3）还有14个分类单元尚未记录，但该地区可能存在。对所有这些分类单元进行了讨论，其中大多数基于模式标本进行了图示和描述；提供了一份鉴定检索表。在中喜马拉雅地区，北全北区分类单元几乎不可能出现，而日本列岛南部、台湾和中国大陆东南部已知分类单元的新记录是有可能的。
