Crepis desertorum(Asteraceae,Cichorieae),a new species from northern Xinjiang(China)based on morphological and molecular data  

作　　者：Juan Qiu Jianwen Zhang Tiangang Gao Dunyan Tan 

机构地区：[1]Xinjiang Key Laboratory of Grassland Resources and Ecology and Ministry of Education Key Laboratory for Western Arid Region Grassland Resources and Ecology,College of Grassland and Environment Sciences,Xinjiang Agricultural University,Uriimqi 830052,China [2]CAS Key Laboratory for Plant Diversity and Biogeography of East Asia,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650201,China [3]State Key Laboratory of Systematic and Evolutionary Botany,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China [4]College of Biology and Environmental Sciences,Jishou University,Jishou 416000,China

出　　处：《Plant Diversity》2020年第2期74-82,共9页植物多样性（英文版）

基　　金：the National Natural Science Foundation of China(No.U1603231,No.31650067 and No.31570213);Program for Tianshan Innovative Research Team of Xinjiang Uygur Autonomous Region,China(2018D14010).

摘　　要：Crepis desertorum from the Junggar Basin of no rthern Xinjiang,northwestern China,is described as a new species.Molecular studies indicate that the species is closely related to Crepis frigida.Morphological studies indicate that it is similar to Crepis sancta subsp.bifida but differs from the latter taxon in having glandular hairs on the stem,a flat receptacle and dimorphic achenes.Chromosome features and pollen and achene ultrastructure also are described for the new species.

关 键 词：KARYOTYPE MICRO-MORPHOLOGY PERICARP POLLEN TAXONOMY 

分 类 号：Q949[生物学—植物学]