中国鸢尾兰属(兰科)植物二新记录种  

Two Newly Recorded Species of Oberonia Lindl.(Orchidaceae)from China

作　　者：李玉玲 林颖[1] 郑涵月 王博 刘东明 邢福武[2] LI Yuling;LIN Ying;ZHENG Hanyue;WANG Bo;LIU Dongming;XING Fuwu(College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China;South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China)

机构地区：[1]华南农业大学林学与风景园林学院,广州510642 [2]中国科学院华南植物园,广州510650

出　　处：《西北植物学报》2020年第9期1613-1616,共4页Acta Botanica Boreali-Occidentalia Sinica

基　　金：国家自然科学基金(31800166)。

摘　　要：该文报道了兰科(Orchidaceae)鸢尾兰属(Oberonia Lindl.)2个中国新记录种,即心唇鸢尾兰(O.orbicularis Hooker f.)和凭祥鸢尾兰(O.delacourii Gagnep.)。其中,心唇鸢尾兰(O.orbicularis)与国内分布的全唇鸢尾兰(O.integerrima)和扁葶鸢尾兰(O.pachyrachis)均较为相似,但该种花葶中下部两侧具狭翅,不与叶合生,唇瓣边缘具明显的啮蚀状齿或细流苏状,先端中部具明显凹缺,可明显区别。心唇鸢尾兰(O.orbicularis)于2013年首次发现于云南省勐腊县,为中国新记录种。凭祥鸢尾兰(O.delacourii)与剑叶鸢尾兰(O.ensiformis)最为相近,但前者唇瓣中裂片先端小裂片近方形,小裂片先端边缘具流苏状齿,可明显区别于后者。凭祥鸢尾兰自1929年发表以来,除模式产地老挝外,至今未见新分布点的报道,为中国新记录种。文中提供了两个新记录种的形态特征描述,凭证标本存放于中国科学院华南植物园标本馆(IBSC)。Oberonia orbicularis Hooker f.and O.delacourii Gagnep.are reported as two newly recorded species of Orchidaceae from China for the first time.O.orbicularis is most similar to O.integerrima Guillaumin and O.pachyrachis Rchb.f.ex Hook.f.,but differs by its peduncle with narrow wings on both sides in basal half and orbicular lip with crenulate or fimbriate margin and notched apex.Since O.orbicularis was discovered in Mengla County,Yunnan Province in 2013 for the first time in China,it is a newly recorded species.Then,O.delacourii is most allied to O.ensiformis,but can be easily distinguished by the lip apex with quadrate sinus and fimbriate margin.The rediscovery of O.delacourii is reported as newly recorded species from China except the type collection from Loas in 1929.Detailed descriptions of these two newly recorded species are provided and the voucher specimens are deposited in the herbarium of South China Botanical Garden,Chinese Academy of Sciences,Guangzhou(IBSC).

关 键 词：兰科 鸢尾兰属 新记录 中国 

分 类 号：Q949.718.43[生物学—植物学]