A new species of Amaranthus (Amaranthaceae) from Mexico

被引：3
|
作者：
Sanchez-Del Pino, Ivonne [1 ,3 ]
Pratt, Donald [2 ]
Flores-Olvera, Hilda [1 ]
机构：
[1] Univ Nacl Autonoma Mexico, Inst Biol, Dept Bot, Apartado Postal 70-233, Mexico City 04510, DF, Mexico
[2] Stephen F Austin State Univ, Dept Biol, POB 13001 SFA Stn, Nacogdoches, TX 75961 USA
[3] Ctr Invest Cient Yucatan, AC Calle 43 X 32 & 34 130 Col Chuburna Hidalgo, Merida 97205, Yucatan, Mexico
来源：
PHYTOTAXA | 2017年 / 291卷 / 03期
关键词：
Caryophyllales; fruit dehiscence; monoecious species; sepals; MORPHOLOGY; GENERA; WEEDY;
D O I：
10.11646/phytotaxa.291.3.4
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
A new endemic species of Amaranthus-Amaranthus neei-from Mexico is described, illustrated, and compared to the putatively related species. A. neei is known from the Valley of Mexico (South of Hidalgo, Mexico city, and State of Mexico), Michoacan, Puebla, Veracruz, and Chiapas. The new species is a monoecious herb characterized by its long, pungent, erect or recurvate, bracts and bracteoles, (2-) 3-5 minute pistillate sepals or absent, ovate, oblong to linear, apex acute to obtuse, and fruits circumscissile, irregularly dehiscent to indehiscent. Infrageneric circumscription of A. neei is discussed together with its critical taxonomic position within the currently accepted infrageneric classification of Amaranthus.
引用
收藏
页码：201 / 208
页数：8
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