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The genera <i>Polygonum</i> and <i>Bilderdykia</i> (Polygonaceae) in southern Africa: morphology and taxonomic value of the ocrea and fruit

By G. Germishuizen, P. J. Robbertse and P. D. F. Kok


<p>The external morphology of the fruit and the ocrea of 16 taxa of <em>Polygonum</em> and <em>Bilderdykia</em> in southern Africa was studied.Fruits are either lenticular or trigonous. Six types of fruit surfaces were distinguished. Five types of ocreae were found, characterized by: a green undulating limb; a silvery hyaline sheath; a brown tubular sheath without terminal hairs; a terminal fringe of short cilia or setae; and a bristly hairy sheath fringed with long rigid setae.</p

Topics: <i>Bilderdykia</i>, fruits, key, morphology, ocrea. <i>Polygonum</i>, taxonomy, General. Including nature conservation, geographical distribution, QH1-199.5
Publisher: AOSIS
Year: 1989
DOI identifier: 10.4102/abc.v19i2.956
OAI identifier: oai:doaj.org/article:2ffea9e7978547b39e4d7a0eb5de8a4b
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