文献类型： 外文期刊
作者： Jiang, Xin-Yu 1 ; Chen, Ya-Ping 3 ; Yuan, Lang-Xing 4 ; Lei, Chun-Yi 5 ; Liu, Ying 1 ; Fan, Qiang 1 ;
作者机构： 1.Sun Yat Sen Univ, Sch Life Sci, State Key Lab Biocontrol, Guangzhou 510275, Guangdong, Peoples R China
2.Sun Yat Sen Univ, Sch Life Sci, Guangdong Prov Key Lab Plant Stress Biol, Guangzhou 510275, Guangdong, Peoples R China
3.Chinese Acad Sci, CAS Key Lab Plant Divers & Biogeog East Asia, Kunming Inst Bot, Kunming 650201, Yunnan, Peoples R China
4.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Haikou 571101, Hainan, Peoples R China
5.Fengkai Heishiding Prov Nat Reserve Guangdong, Zhaoqing 526536, Guangdong, Peoples R China
6.Sun Yat Sen Univ, Sch Ecol, Shenzhen 518107, Guangdong, Peoples R China
关键词： Ajugoides; limestone karsts; Matsumurella; nutlet; Paraphlomideae
期刊名称：SYSTEMATIC BOTANY （ 影响因子：0.8； 五年影响因子：0.9 ）
ISSN： 0363-6445
年卷期： 2024 年 49 卷 2 期
页码：
收录情况： SCI
摘要： Paraphlomis octopus (Lamiaceae), a new species from the limestone area in Guangdong and Guangxi, China, is described and illustrated. Molecular phylogenetic analyses based on two nuclear ribosomal DNA sequences revealed that the new species is sister to P. pagantha, , and the two species is further sister to P. kwangtungensis. . All three species were further embedded within a clade consisting of species with hairy ovaries or nutlets. Morphologically, the new species can be distinguished from P. kwangtungensis in its acute apex of calyx tooth, from P. pagantha in its strongly reflexed lower corolla lip, and from both species in its inflorescence with peduncle-like stalks, and wider upper corolla lip. Based on extensive field survey, we also found that the type locality of P. kwangtungensis has long been misrecorded as eastern Guangdong in floras. The species is now only known from its actual type locality in Fengwan Town, northern Guangdong. A key to all species with hairy ovaries and nutlets is provided.
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