云南被子植物新资料

植物资源调查是探讨系统发育、植物区系进化历史和亲缘关系的基础,是我国植物研究工作的重要任务之一,虽然我国在植物资源调查方面有了丰富的积累,并以《中国植物志》和各地方植物志为代表,但部分偏远地区的植物资源状况仍然缺乏数据。该研究通过形态特征比较分析,发现云南省被子植物新记录3种,即柳叶黄肉楠(Actinodaphne lecomtei C. K. Allen)原分布于四川、贵州、广东(乳源)、广西,云南省丘北县为其新记录点;八角樟(Cinnamomum ilicioides A. Chevalier)原分布于中国的广东、海南、广西和越南北部,云南省西双版纳傣族自治州勐腊县为其新记录点;贵州山核桃(Carya kweichowensis Kuang A. M. Lu ex Chang et Lu)原分布于贵州安龙、望谟、册亨、兴义等,云南省丘北县为其新记录点。柳叶黄肉楠和八角樟在云南的新分布点是对我国樟科薄弱地带的补充,为分析滇产原始种类对相关属的起源发生和中国樟科分类学研究提供了新材料;贵州山核桃在物种层面上对确定贵州山核桃与喙核桃(Annamocarya sinensis)两者之间的联系提供了新的案例,并为云南发展山核桃(Carya cathayensis)生产提供了种质资源。

New data of angiosperms in Yunnan

Survey on plant resources plays a basic role in studying plant systematics and floristic evolutionary history and affinities, which is one of the important tasks of plant research in China. Although China has a rich accumulation in plant resources investigation with Flora of China and local flora records, data on plant resources in some remote areas are still lacking. Actinodaphne lecomtei C. K. Allen, Cinnamomum ilicioides A. Chevalier and Carya kweichowensis Kuang A. M. Lu ex Chang et Lu are reported with new distribution records by morphological comparison in South Yunnan, China, respectively. Actinodaphne lecomtei was previously recorded to be found in Sichuan, Guizhou, Guangdong(Ruyuan)and Guangxi, China; Cinnamomum ilicioides to be endemic to Guangdong, Hainan, Guangxi, China, and northern Vietnam; Carya kweichowensis to be distributed in Anlong, Wangmo, Cenheng, Xingyi of Guizhou etc., China. The new distribution records of Actinodaphne lecomtei and Cinnamomum ilicioides complements the weak areas in China, and provide the data for analyzing relationship between original species with genera and the taxonomic study of Lauraceae in China. The new distribution record of Carya kweichowensis provides a new case at the species level for confirming the connection between C. kweichowensis and Annamocarya sinensis, furthermore, provides germplasm resources for the development of Carya cathayensis production in Yunnan.