文献类型：期刊文献

英文题名：Two New Species of Aristolochia (Aristolochiaceae) from Hainan Island, China

作者：Xu, Han[1] Li, Yi-De[1] Yang, Hai-Jun[2] Chen, Huan-Qiang[3]

第一作者：许涵

通信作者：Li, YD[1]|[a000515db5a8e58e42817]李意德;

机构：[1]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Guangdong, Peoples R China;[2]S China Agr Univ, Guangzhou 510642, Guangdong, Peoples R China;[3]Jianfengling Natl Nat Reserve, Jianfengling 572542, Ledong, Peoples R China

年份：2011

卷号：21

期号：2

起止页码：285-289

外文期刊名：NOVON

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000292443200026)】；

基金：The specimen collection was supported by Jianfengling National Nature Reserve. The authors are very grateful to Sugin Fang for photographing the specimens and Xueying Zhuang and Michael G. Gilbert for revising the paper. The authors also thank two anonymous reviewers for their suggestions and Roy Gereau for revising the Latin diagnoses. The paper was supported by grants from the following agencies: the Ministry of Finance and State Forestry Administration of the People's Republic of China (RITFYWZX200902, 201104057) and the Ministry of Science and Technology of the People's Republic of China (2006FY110500).

语种：英文

外文关键词：Aristolochia; Aristolochiaceae; China; Hainan; IUCN Red List

摘要：Two new species of Aristolochia (Aristolochiaceae), A. ledongensis Flan Xu, Y. D. Li & H. J. Yang and A. jianfenglingensis Han Xu, Y. D. Li & H. Q. Chen, are described and illustrated from Hainan Island, China. Aristolochia ledongensis differs from the similar A. championii Merr. & Chun and A. bambusifolia C. F. Liang ex H. Q. Wen by having the exterior of the calyx yellow (vs. yellowish green), a smaller basal portion of the calyx tube (15-16 X 4.5-5 mm vs. 30-70 X 7-10 mm), a narrower calyx limb (0.5-0.7 cm vs. 1.5-6 cm wide), and a shorter peduncle (0.7-1 cm vs. 1.8-5 cm). Aristolochia jianfenglingensis differs from the similar A. championii and A. bambusifolia by having the sterns glabrous (vs. densely villous), the exterior of the calyx light red-brown (vs. yellowish green), a smaller basal portion of the calyx tube (23-26 X 5-6 nun vs. 30-70 X 7-10 mm), and a narrower calyx find) (0.8-0.9 cm VS. 1.5-6 cm wide). Aristolochia championii and A. bambusifolia have densely vinous stems; the exterior of the calyx is yellowish green, with a larger basal portion of the calyx tube (> 30 X ca. 10 mm); the calyx limb is discoid and more than 15 mm wide; and the peduncle is longer than 18 mm. Both new taxa are assessed as Vulnerable (VU D2) according to IUCN Red List criteria.