盛宇报春苣苔,中国广西石灰岩地区苦苣苔科一新种——兼述微斑报春苣苔花的形态补充描述  

Primulina liangshengyui(Gesneriaceae),a New Species from Guangxi,China with Supplementary Description of Floral Morphology of P.minutimaculata

作　　者：陈荻雅 李瑞锋 丁莉[2] CHEN Diya;LI Ruifeng;DING Li(College of Tourism and Landscape Architecture,Guilin University of Technology,Guilin 541006,Guangxi,China;National Gesneriaceae Germplasm Resources Bank,Gesneriad Conservation Center of China,Guangxi Institute of Botany,Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences,Guilin 541006,Guangxi,China)

机构地区：[1]桂林理工大学旅游与风景园林学院,广西桂林541006 [2]广西植物研究所国家苦苣苔科种质资源库,中国苦苣苔科植物保育中心,广西壮族自治区中国科学院广西植物研究所,广西桂林541006

出　　处：《热带亚热带植物学报》2024年第5期629-636,共8页Journal of Tropical and Subtropical Botany

基　　金：国家自然科学基金项目(32160082);广西自然科学基金项目(2020GXNSFBA297049);广西科学院基本科研业务费项目(CQZ-C-1901);广西科技计划项目(ZY21195050,AD20159091);中国科学院战略生物资源能力建设项目(KFJ-BRP-017-68)资助。

摘　　要：报道了中国广西石灰岩地区苦苣苔科报春苣苔属一新种:盛宇报春苣苔(Primulina liangshengyui R.F.Li&L.Ding),该种形态上与微斑报春苣苔[P.minutimaculata(D.Fang&W.T.Wang)Yin Z.Wang]近似,但可通过叶片且两面被极短的白色糙伏毛;苞片正面无毛,背面被白色短糙浮毛;萼片密被腺毛;花冠紫色,基部逐渐褪为白色;花丝具腺毛来区分。目前,该种仅在广西大化县发现一个居群,成熟个体不足500株,通过IUCN评估标准,该种暂时被评为易危[VU D2]。同时,基于大量的有花标本和野外实地调查,对微斑报春苣苔的花部形态进行了补充描述。Primulina liangshengyui R.F.Li&L.Ding,a new species of Gesneriaceae from the limestone of Guangxi,China is described and illustrated.It resembles P.minutimaculata(D.Fang&W.T.Wang)Yin Z.Wang,but can be easily distinguished by a combination of characters,especially in its leaf blades both sides very short white strigillose;bracts adaxially glabrous,abaxially densely white strigillose;calyx lobes both sides densely glandular puberulent;corolla tube purple and gradually fading to white at the base;filaments glandular puberulent.There is only one population with less 500 mature individuals at the type locality.Thus,this species was provisionally assessed as Vulnerable Endangered[VU D2]by using IUCN criteria.Further,supplemented and described of floral morphology of P.minutimaculata is also appended,based on plenty of specimens with flowers and field works,and especially according to living plant in bloom.

关 键 词：广西植物 新分类群 石灰岩植物 盛宇报春苣苔 微斑报春苣苔 

分 类 号：Q949.778.4[生物学—植物学]