西藏红景天属一新变种——嘉黎红景天  

A New Variety of Rhodiola in Tibet——Rhodiola humilis(HK.f.et Thoms.)S.H.Fu var.jialiensis H.Wang,X.Z.Lan&H.P.Deng

作　　者：汪豪 兰小中[3] 邓洪平[1,2] WANG Hao;LAN Xiaozhong;DENG Hongping(Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Institute of Resources Botany, School of Life Sciences, Southwest University, Beibei, Chongqing 400715, China;2Chongqing Research Center for Low Carbon and Ecological Ervironment, Chongqing Academy of Science & Technology, Chongqing 401123, China;3Medicinal Plants Research Center, Tibet Agriculture and Animal Husbandry University, Nyingchi, Tibet 860000, China)

机构地区：[1]西南大学生命科学学院,资源植物保护与种质创新重庆市重点实验室,重庆北碚400715 [2]重庆市科学技术研究院低碳与生态环保研究中心,重庆401123 [3]西藏农牧学院药用植物研究中心,西藏林芝860000

出　　处：《西北植物学报》2020年第1期174-180,共7页Acta Botanica Boreali-Occidentalia Sinica

基　　金：科技部国家科技基础平台国家标本平台——教学标本子平台运行服务资助项目(2005DKA21403-JK);中央本级重大增减支项目(2060302);国家自然科学基金(81660628)。

摘　　要：全国第四次中药资源普查于西藏自治区嘉黎县、芒康县调查中,在海拔4000~5000 m灌木丛的石灰岩上发现了一种红景天属植物,该种在形态上与矮生红景天[Rhodiola humilis(HK.f.et Thoms.)S.H.Fu]较近,但花序顶端伞房状、花茎约7~13枝,基生叶先端锐尖,萼片长三角形,叶片和萼片先端具深粉红色浅囊等独有的特征,与后者不同。分子生物学证据表明,与矮生红景天(R.humilis)和异鳞红景天[Rhodiola smithii(Hamet)S.H.Fu]近缘。基于形态学与分子生物学证据,特将它描述为矮生红景天(R.humilis)新变种,命名为嘉黎红景天[Rhodiola humilis(HK.f.et Thoms.)S.H.Fu var.jialiensis H.Wang,X.Z.Lan&H.P.Deng]。By the fourth survey of Chinese medicinal resources in Jiali County and Mangkang County of Tibet Autonomous Region,a Rhodiola plant was discovered on the limestone of bushes at an altitude 4000-5000 m,which is morphologically similar to Rhodiola humilis(HK.f.et Thoms.)S.H.Fu,but it is unique characteristics in inflorescence aterminal cymose,flowering stems closed to 7-13 branches,caudex leaves apex acute,sepals long triangular,apex organs of leaves and sepals dark pink finely mammilla,et.al,which is not same as R.humilis.Molecular biology evidence indicates that phylogeny is associated with R.humilis and Rhodiola smithii(Hamet)S.H.Fu.Based on morphological and molecular biological evidence,we described it as a new variety,named Rhodiola humilis(HK.f.et Thoms.)S.H.Fu var.jialiensis H.Wang,X.Z.Lan&H.P.Deng.

关 键 词：红景天属 嘉黎红景天 新变种 西藏 

分 类 号：Q949.751.1[生物学—植物学]