中国大陆菊科二新归化植物

Two Newly Naturalized Species of Asteraceae in Mainland China

摘要:

报道了中国菊科2新归化植物：短舌花金钮扣（Acmella brachyglossa Cass.）和粉黄缨绒花（Emilia praetermissa Milne-Redh.）。短舌花金钮扣原产美洲中部和南部以及加勒比海，我国台湾有逸生，最近在广州黄埔区发现1归化居群，而此前浙江象山县报道的本种新记录实为白花金钮扣[A.radicans var.debilis（Kunth） R.K.Jansen]的错误鉴定。粉黄缨绒花原产于西非，我国台湾有逸生，最近在广州市和鹤山市发现了大量的归化居群，而且生长旺盛并排斥其他草本植物，具有明显的入侵性，应引起相关部门的重视。凭证标本保存在中国科学院华南植物园标本馆（IBSC）。

Abstract:

Two newly naturalized species of Asteraceae, Acmella brachyglossa Cass. and Emilia praetermissa Milne-Redh. in Mainland China were reported. The former is native to Central and South America and the Caribbean, and naturalized in Taiwan. Recently a population of this species was found in Huangpu District of Guangzhou City. The previously reported new record of this species in Xiangshan County, Zhejiang Province was actually a misidentification of A. radicans var. debilis (Kunth) R. K. Jansen. Emilia praetermissa originates in West Africa, which also becomes naturalized in Taiwan. Many populations of this invasive species were discovered in Conghua District of Guangzhou City and Heshan City this year. The vouchers are housed in Herbarium of South China Botanical Garden, Chinese Academy of Sciences (IBSC).