A new species of Psacalium (Asteraceae, Senecioneae) from the state of Guerrero, Mexico

被引：0
|
作者：
Villasenor, Jose Luis [1 ]
Hinojosa, Oscar [1 ,2 ]
Redonda-Martinez, Rosario [3 ]
机构：
[1] Univ Nacl Autonoma Mexico, Inst Biol, Dept Bot, Apartado Postal 70-233, Ciudad De Mexico 04510, Mexico
[2] Univ Calif Davis, Plant Biol Grad Grp, One Shields Ave, Davis, CA 95616 USA
[3] Ctr Reg Bajio, Inst Ecol, AC Red Diversidad Biol Occidente Mexicano, Av Lazaro Cardenas 253, Patzcuaro 61600, Michoacan, Mexico
来源：
PHYTOTAXA | 2018年 / 345卷 / 01期
关键词：
Cacalioid Senecioneae; Compositae; endemism; new taxa; Sierra Madre del Sur; Tussilaginae;
D O I：
10.11646/phytotaxa.345.1.9
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Psacalium villosum is described from the central mountainous region of the state of Guerrero, Mexico. This novelty belongs to the peltate group of Psacalium and is distinguished primarily by its densely villose capitulescence axis and branches. In addition, the capitulescence lacks bracts. The heads are obscurely calyculate, bear up to 44 florets, and have a glandular-stipitate receptacle. Here, we describe and illustrate this new species. We also provide a distribution map and a comparison with similar taxa.
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页码：73 / 77
页数：5
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