Two new species of Polyalthiopsis(Annonaceae) based on morphological characters and phylogenetic evidence,with a supplementary description of *** from China

作     者：Bin Yang Jin-Yue Li Rui-Jie Yang Hong-Bo Ding Min Deng Chun-Fen Xiao Yun-Juan Zuo Yun-Hong Tan Bin Yang;Jin-Yue Li;Rui-Jie Yang;Hong-Bo Ding;Min Deng;Chun-Fen Xiao;Yun-Juan Zuo;Yun-Hong Tan

作者机构：Southeast Asia Biodiversity Research InstituteChinese Academy of Sciences&Center for Integrative ConservationXishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303YunnanChina The Key Laboratory of Rare and Endangered Forest Plants of National Forestry and Grassland Administration&The Key Laboratory for Silviculture and Forest Resources Development of Yunnan ProvinceYunnan Academy of Forestry and GrasslandKunming 650201YunnanChina College of Life ScienceUniversity of Chinese Academy of SciencesHuairou DistrictBeijing 101408China School of Ecology and Environmental ScienceYunnan UniversityKunming 650091YunnanChina Center for Gardening and HorticultureXishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303YunnanChina 

出 版 物：《Plant Diversity》 (植物多样性（英文版）)

年 卷 期：2023年第45卷第2期

页      面：185-198页

核心收录：

学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学] 

基　　金：funded by the National Natural Science Foundation of China (Grants Nos.31900180 and 31970223) the Special Fund of Yunnan Fundamental Research Projects (Grant No.202101AT070058) the project of the Yunnan Academy of Forestry and Grassland (Grant No.KFJJ21-01) the Project of National Plant Specimen Resource Center (NPSRC) (E0117G1001) the Biodiversity Investigation Observation and Assessment Program (2019-2023) of Ministry of Ecology and Environment of China the project of the Southeast Asia Biodiversity Research Institute,Chinese Academy of Sciences (Grant No.Y4ZK111B01) 

主　　题：Annonaceae Morphology Polyalthia Polyalthiopsis Southeast Yunnan 

摘      要：Two new species of Polyalthiopsis(Annonaceae),*** *** & Bin Yang from Guangxi and Yunnan Provinces and *** *** & Bin Yang from Yunnan Province,are described and *** is morphologically similar to *** in having narrowly elliptic-oblong,lemon to yellowish green petals,but differs by having obovoid monocarps,a higher number of leaf secondary veins,leaf blades usually widest above the middle,and a lower ratio of leaf blade length to *** is morphologically similar to *** in having axillary inflorescences,1-3(-4) flowers,elliptic leaves,and ellipticovate petals,but differs in the numbers of carpels per flower and ovules per *** molecular phylogenetic analysis using five plastid markers confirm that the two new species belong to the genus Polyalthiopsis and show clear interspecific divergences between *** and *** and between them and other species in the *** descriptions,colored photographs,and habitat and distribution data for the two new species are *** addition,the fruit morphology of *** is described for the first time,based on living *** distributions and a diagnostic key for all Polyalthiopsis species are also presented.