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TAXONOMY OF ZEA (GRAMINEAE). II. SUBSPECIFIC CATEGORIES IN THE ZEA MAYS COMPLEX AND A GENERIC SYNOPSIS

Hugh H. Iltis, John Doebley

Open publisher page 201 citations

Abstract

A compromise classification of the genus Zea , reflecting both phylogeny and practical needs, recognizes six taxa, as follows: Section L uxuriantes : Zea perennis. Zea diploperennis, Zea luxurians . Section Z ea : Zea mays ssp. mexicana (Neo‐volcanic Plateau), Zea mays ssp. parviglumis Iltis & Doebley ssp. n. var. parviglumis (Rio Balsas drainage, Pacific slope from Guerrero to Jalisco), Zea mexicana ssp. parviglumis var. huehuetenangensis Iltis & Doebley var. n. (Pacific slope, western Guatemala, Prov. Huehuetenango), Zea mays ssp. mays . The new subspecies is distinguished by smaller spikelets and rachis joints, the varieties by different habitats, blooming dates and their genetic behavior in relation to cultivated Zea mays. Zea mays ssp. mexicana is the ancestor of corn.

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A compromise classification of the genus Zea , reflecting both phylogeny and practical needs, recognizes six taxa, as follows: Section L uxuriantes : Zea perennis. Zea diploperennis, Zea luxurians . Section Z ea : Zea mays ssp. mexicana (Neo‐volcanic Plateau), Zea mays ssp. parviglumis Iltis & Doebley ssp. n. var. parviglumis (Rio Balsas drainage, Pacific slope from Guerrero to Jalisco), Zea mexicana ssp. parviglumis var. huehuetenangensis Iltis & Doebley var. n. (Pacific slope, western Guatemala, Prov. Huehuetenango), Zea mays ssp. mays . The new subspecies is distinguished by smaller spikelets and rachis joints, the varieties by different habitats, blooming dates and their genetic behavior in relation to cultivated Zea mays. Zea mays ssp. mexicana is the ancestor of corn.

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Available abstract

A compromise classification of the genus Zea , reflecting both phylogeny and practical needs, recognizes six taxa, as follows: Section L uxuriantes : Zea perennis. Zea diploperennis, Zea luxurians . Section Z ea : Zea mays ssp. mexicana (Neo‐volcanic Plateau), Zea mays ssp. parviglumis Iltis & Doebley ssp. n. var. parviglumis (Rio Balsas drainage, Pacific slope from Guerrero to Jalisco), Zea mexicana ssp. parviglumis var. huehuetenangensis Iltis & Doebley var. n. (Pacific slope, western Guatemala, Prov. Huehuetenango), Zea mays ssp. mays . The new subspecies is distinguished by smaller spikelets and rachis joints, the varieties by different habitats, blooming dates and their genetic behavior in relation to cultivated Zea mays. Zea mays ssp. mexicana is the ancestor of corn.

Key concepts: Zea mays, Biology, Subspecies, Poaceae, Taxon, Botany, Taxonomy (biology), Habitat

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