Original Research

A revision of the genus Prionanthium (Poaceae : Arundineae)

Gerrit Davidse
Bothalia | Vol 18, No 2 | a997 | DOI: https://doi.org/10.4102/abc.v18i2.997 | © 1988 Gerrit Davidse | This work is licensed under CC Attribution 4.0
Submitted: 22 October 1988 | Published: 23 October 1988

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Gerrit Davidse, issouri Botanical Garden, South Africa

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Priononanthium revised and three species are recognized. All three species have a chromosome number of n =7. The genus is unual. in having multicellular, secretory glands on the glumes and a wide range of inflorescence types. Priononanthium  is considered to be arundinoid on the basis of its leaf anatomy, ciliate ligule, spikelet morphologyand less strongly, chromosome number. Its chromosome number, multicellular glands, two florets per spikelet, type of palea and  rachilla extension relate it more closely to  Pentaschistis than to any other extant arundinoid genus. A fully illustrated taxonomic account is presented.


Arundineae; Cape; chromosome numbers; conservation, Poaceae; Prionanthium; taxonomic revision


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