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Journal Article

Koyamaea neblinensis, a New Genus and Species of Cyperaceae (Sclerioideae) from Cerro de la Neblina, Venezuela and Brazil

Wm. Wayt Thomas and Gerrit Davidse
Systematic Botany
Vol. 14, No. 2 (Apr. - Jun., 1989), pp. 189-196
DOI: 10.2307/2418905
Stable URL: http://www.jstor.org/stable/2418905
Page Count: 8

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Topics: Spikelets, Glumes, Inflorescences, Bisexuality, Stamens, Bracts, Botany, Massifs, Stems, Flowers
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Koyamaea neblinensis, a New Genus and Species of Cyperaceae (Sclerioideae) from Cerro de la Neblina, Venezuela and Brazil
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Abstract

Koyamaea neblinensis W. Thomas & Davidse, gen. et sp. nov., from Cerro de la Neblina, Venezuela and Brazil, is described and illustrated. Because of its bisexual spikelets, each bearing one pistillate flower and many staminate flowers, presence of well-developed glumellae in both kinds of flowers, spirally arranged glumes, and regular fruit without a cupule, Koyamaea is classified as a new genus of Sclerioideae. It is probably not closely related to any other genus in the subfamily and is, therefore, placed in its own tribe, the Koyamaeae W. Thomas & Davidse, tribus nov.

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