Youngia jiulongensis (Crepidinae, Cichorieae, Asteraceae), a New Species from Sichuan, China
Youngia jiulongensis (Crepidinae, Cichorieae, Asteraceae), a New Species from Sichuan, China
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DOI：
10.3417/2015028
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发表时间：
2017-07-01
期刊：
影响因子：
0.5
通讯作者：
Zhang, Li-Bing
中科院分区：
文献类型：
--
作者：
Peng, Ya-Lan;Gao, Xin-Fen;Zhang, Li-Bing
九龙黄蓍L.彭、X。F.本文描述了四川西部菊科一新种Gao & Li Bing Zhang。这个新物种与Y mairei Lev相似。宝贝& Stebbins和Y.毛状C. Shih的瘦果为黑褐色，冠毛为白色，头状花序较少，但与后两者不同的是，其株高较高（28-50厘米对8-30厘米），2 - 3片发育良好的不裂尾叶，叶缘疏生齿，叶尖锐尖，叶柄长，无翅，全株退化短柔毛，叶无毛，所有内部叶平面的中脉。
Youngia jiulongensis Y. L. Peng, X. F. Gao & Li Bing Zhang, a new species of Asteraceae from western Sichuan, China, is described. This new species is similar to Y mairei Lev.) Babe. & Stebbins and Y. pilifera C. Shih in having blackish brown achenes, a white pappus, and fewer capitula, but distinct from the latter two in having a taller stature (28-50 cm vs. 8-30 cm), two or three well developed, undivided caudical leaves, sparsely toothed leaf margins, acute leaf apices, long non winged petioles, reduced pubescence on the whole plant, glabrous phyllaries, and midveins of all inner phyllaries plane.