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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