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Morphological and molecular evidence for a new species from China: Piper semi-transparens (Piperaceae)

文献类型： 外文期刊

作者： Hao, Chao-Yun 1 ; Wu, Bao-Duo 1 ; Qin, Xiao-Wei 1 ; Wu, Gang 1 ; Deng, Hai-Yan 4 ; Tan, Yun-Hong 5 ;

作者机构： 1.CATAS, Spice & Beverage Res Inst, Wanning 571533, Hainan, Peoples R China

2.Minist Agr, Key Lab Genet Resources Utilizat Spice & Beverage, Wanning 571533, Hainan, Peoples R China

3.Hainan Prov Key Lab Genet Improvement & Qual Regu, Wanning 571533, Hainan, Peoples R China

4.Diaoluoshan Natl Nat Reserve, Lingshui 572921, Hainan, Peoples R China

5.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Ctr Integrat Conservat, Mengla 666303, Yunnan, Peoples R China

6.Chinese Acad Sci, Core Bot Gardens, Ctr Conservat Biol, Mengla 666303, Yunnan, Peoples R China

关键词： diversity; ITS; taxonomy; tropical flora

期刊名称：PHYTOTAXA （ 影响因子：1.171； 五年影响因子：1.196 ）

ISSN： 1179-3155

年卷期： 2020 年 429 卷 3 期

页码：

收录情况： SCI

摘要： We conducted morphological and molecular analyses to describe a new species of Piperaceae, Piper semi-transparens, which was observed in Hainan, Guangdong and Guangxi Provinces, China. Detailed morphological comparisons between the newly discovered species and other members of Piper indicate that Piper semi-transparens is similar to P. bonii and P. bonii var. macrophyllum, from which it differs in having glabrous leaf blades; stem densely short and unbranched pubescent when young, glabrous when mature; veins 5(-7); stamens 2; stigmas 3, rarely 4; spikes color white when mature; floral bracts glabrous; pericarp white and semi-transparent. Molecular analyses based on the ITS marker of nuclear ribosomal DNA strongly support that P. semi-transparens is a new species in the genus Piper, most closely related to P. bonii and P. bonii var. macrophyllum.

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