中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Pteris xiaoyingae, sp. nov. (sect. Pteris) from a Karst Cave in China Based on Morphological and Palynological Evidence

文献类型:期刊论文

作者He, Hai ; Zhang, Li-Bing
刊名SYSTEMATIC BOTANY
出版日期2010
卷号35期号:4页码:695-700
关键词Cave flora China Guizhou Pteridaceae Pteris deltodon Pteris gallinopes Pteris sect. Pteris Pteris xiaoyingae
ISSN号0363-6445
通讯作者Zhang, LB, Chinese Acad Sci, Chengdu Inst Biol, POB 416, Chengdu 610041, Sichuan, Peoples R China
中文摘要A new fern species, Pteris xiaoyingae (sect. Pteris, Pteridaceae), is described from a karst cave in southern Guizhou, China. The new species is a small-sized limestone rock-dwelling plant. It has trifoliate leaves with two lateral pinnae each mostly divided at the base into two almost free basiscopic lobes. Morphologically it is similar to P. gallinopes and P. deltodon that also occur on shady limestone walls often inside or near karst caves. Pteris xiaoyingae differs from P. gallinopes in its middle pinna being ovate-lanceolate with blunt apex and lateral pinnae and their lobes oblong-obovate with round or obtuse apex. Pteris xiaoyingae also has wider pinnae (more than 7 mm) than P. gallinopes (2-4 mm). Pteris xiaoyingae is distinguishable from P. deltodon by being smaller in stature (only 4-7 cm high in P. xiaoyingae vs. 10-40 cm high in P. deflation) and by having lamina more or less pedate in outline (for the majority of leaves with lobed lateral pinnae) and pinnae and lobes with round or blunt apices (vs. with short or long acuminate apices in P. deltodon). Palynologically, P. xiaoyingae has conic-deltate spores with verrucate sculpture while both P. gallinopes and P. deltodon have deltate spores with vermiculate-rugulate sculpture. Morphological distinctiveness of this new fern and its relationships with allied species are discussed and a key to these and other morphologically similar species is given.
学科主题Plant Sciences; Evolutionary Biology
收录类别SCI
资助信息Chongqing Education Commission [KJ090827]; Open Laboratory of Ecological Restoration and Biodiversity Conservation of Chengdu Institute of Biology, Chinese Academy of Sciences ; National Geographic Society of the U.S.A.
语种英语
公开日期2011-07-08
源URL[http://210.75.237.14/handle/351003/22482]  
专题成都生物研究所_生态研究
推荐引用方式
GB/T 7714
He, Hai,Zhang, Li-Bing. Pteris xiaoyingae, sp. nov. (sect. Pteris) from a Karst Cave in China Based on Morphological and Palynological Evidence[J]. SYSTEMATIC BOTANY,2010,35(4):695-700.
APA He, Hai,&Zhang, Li-Bing.(2010).Pteris xiaoyingae, sp. nov. (sect. Pteris) from a Karst Cave in China Based on Morphological and Palynological Evidence.SYSTEMATIC BOTANY,35(4),695-700.
MLA He, Hai,et al."Pteris xiaoyingae, sp. nov. (sect. Pteris) from a Karst Cave in China Based on Morphological and Palynological Evidence".SYSTEMATIC BOTANY 35.4(2010):695-700.

入库方式: OAI收割

来源:成都生物研究所

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