Faberia pinnatifida (Asteraceae; Cichorieae), a new species from Sichuan, China

Faberia pinnatifida (Asteraceae; Cichorieae), a species occurring at high altitudes in Muli and Yanyuan Xian, Sichuan, China, is described as new based on morphological, palynological and molecular phylogenetic data. The ITS data indicate that F. pinnatifida is closely related to F. glaucescens and F. thibetica, but it is easily distinguished from F. glaucescens by its scapigerous stem with only one or two leaves, and from F. thibetica in its much taller stature and elliptic to oblanceolate leaf blade. Faberia pinnatifida somewhat resembles F. ceterach in the scapigerous stem and pinnatifid leaves, but readily differs in its corymbiform synflorescence and nodding capitula bearing ca. 30 florets.栉叶费伯菊（Faberia pinnatifida）隶属于菊科（Asteraceae）菊苣族（Cichorieae），该物种分布于中国四川省木里县与盐源县的高海拔区域，本研究基于形态学、孢粉学及分子系统发育数据将其描述为新物种。内部转录间隔区（Internal Transcribed Spacer，简称ITS）序列数据显示，栉叶费伯菊与灰叶费伯菊（F. glaucescens）及西藏费伯菊（F. thibetica）亲缘关系密切；其可通过仅具1~2枚叶片的花葶状茎与灰叶费伯菊轻易区分，而凭借植株更高大、叶片呈椭圆形至倒披针形与西藏费伯菊相区别。栉叶费伯菊的花葶状茎与羽状分裂叶片与费伯菊（F. ceterach）较为相似，但可通过其伞房状复头状花序以及具约30朵小花的下垂头状花序与后者显著区分。