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1 October 2011 Phyllopentas flava (Rubiaceae), a New Morphologically Heterodistylous and Functionally Dioecious Species from Madagascar
Tefy H. Andriamihajarivo, Sylvain G. Razafimandimbison, Jesper Kårehed
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Abstract

A new species of the Afro-Malagasy genus Phyllopentas Kårehed & B. Bremer, Phyllopentas flava Razafim., T. Andriam. et Kårehed, is described and illustrated. This plant is restricted to the Itremo region in southeastern Madagascar and is distinct morphologically from the other species of the genus by its pubescent, narrowly ovate to narrowly elliptic leaves, grey-whitish and thickly hairy midribs and secondary veins on the lower surfaces of leaves, and functionally dioecious and heterodistylous flowers. Summaries of distribution, phenology, habitat, and ecology are given and a conservation assessment is also provided.

© Copyright 2011 by the American Society of Plant Taxonomists
Tefy H. Andriamihajarivo, Sylvain G. Razafimandimbison, and Jesper Kårehed "Phyllopentas flava (Rubiaceae), a New Morphologically Heterodistylous and Functionally Dioecious Species from Madagascar," Systematic Botany 36(4), 1024-1027, (1 October 2011). https://doi.org/10.1600/036364411X605029
Published: 1 October 2011
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KEYWORDS
functional dioecy
heterodistyly Knoxieae
Phyllopentas
Rubiaceae
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