绿绒蒿属一中国新记录种——尼东绿绒蒿

Meconopsis dhwojii G.Taylor ex Hay(Meconopsis Viguier),a new record to China

中国西藏植物多样性较为丰富,尽管已经进行了多次的植物多样性调查,但仍存在较严重的不均衡现象,部分地区和类群存在采集不足,甚至空白。我们针对西藏日喀则植物多样性调查薄弱区域开展调查,发现一个未记录的绿绒蒿属(Meconopsis Viguier)植物,采集了标本和种子。经查阅《西藏植物志》《中国植物志》、Flora of China、Flora of Nepal鉴定为尼东绿绒蒿(M.dhwojii G.Taylor ex Hay)。该文植物新资料报道如下:(1)尼东绿绒蒿形态描述及其彩色图片。(2)该植物种子微形态、与近似种间的形态差异。新发现丰富了中国绿绒蒿属植物多样性,对研究西藏乃至中国绿绒蒿属植物具有一定的生物地理学意义和潜在的园艺价值。绿绒蒿属分类须加强野外调研,多技术手段开展研究。

Tibet of China is relatively rich in plant diversity,although several plant diversity surveys have been conducted,there are still serious imbalances,and some areas and taxa are under-collected or even some gaps.In order to fill the survey gaps,fieldwork was carried out to target areas of weakness in plant diversity surveys in Xigaze.We found an unrecorded plant of the genus Meconopsis Viguier,collected specimens and seeds.After consulting Flora Xizangica,Flora Reipublicae Popularis Sinicae,Flora of China,Flora of Nepal,it was identified as M.dhwojii G.Taylor ex Hay.The new information is reported as follows:(1)Descriptions and photographs are provided.(2)Seed micromorphology and morphological differences between closely related species also are provided.The new discovery enriches the diversity and also provides new research information for the genus Meconopsis Viguier in China,which has some biogeographical significance and potential horticultural value for the study of Meconopsis Viguier in Tibet and even in China.There is a long way to go in researching the genus Meconopsis Viguier.We should strengthen field research and carry out research by multi-technical means in the future.