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A Review of the New World Species of Orthrosanthus Sweet (Iridaceae)

James E. Henrich and Peter Goldblatt
Annals of the Missouri Botanical Garden
Vol. 74, No. 3 (1987), pp. 577-582
DOI: 10.2307/2399325
Stable URL: http://www.jstor.org/stable/2399325
Page Count: 6
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A Review of the New World Species of Orthrosanthus Sweet (Iridaceae)
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Abstract

Orthrosanthus, a genus of some 9 species of Iridaceae-Sisyrinchieae, occurs in Australia and South and Mesoamerica. This review, arising out of research for floristic treatments for Flora Mesoamericana and Flora de Nicaragua, deals with the systematics and nomenclature of the New World species. We recognize five American species: O. acorifolius and O. occissapungus are endemic in South America; O. chimboracensis occurs in South and Mesoamerica; and O. monadelphus and O. exsertus are restricted to Mesoamerica and Mexico. The taxonomic history of Orthrosanthus in the New World is outlined followed by a key, and the nomenclature, brief descriptions, and distribution ranges for each species are provided.

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