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Type: Article
Published: 2017-01-13
Page range: 201–208
Abstract views: 21
PDF downloaded: 1

A new species of Amaranthus (Amaranthaceae) from Mexico

Centro de Investigación Científica de Yucatán, A.C. Calle 43 No 130 x 32 y 34. Col. Chuburná de Hidalgo C.P. 97205. Mérida, Yucatán. México.
Department of Biology, Stephen F. Austin State University, P.O. Box 13001 SFA-Station, Nacogdoches, Texas 75961, U.S.A.
Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México, Apartado Postal 70-233, C.P. 04510 México, D.F. México.
Caryophyllales fruit dehiscence monoecious species sepals Eudicots Mexico

Abstract

A new endemic species of AmaranthusAmaranthus 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), Michoacán, 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.