Original Research

Studies in the Marchantiales (Hepaticae) from southern Africa. 8. The genus Plagiochasma (Aytoniaceae: Aytonioideae) and six local taxa

S. M. Perold
Bothalia | Vol 25, No 1 | a707 | DOI: https://doi.org/10.4102/abc.v25i1.707 | © 1995 S. M. Perold | This work is licensed under CC Attribution 4.0
Submitted: 09 October 1995 | Published: 09 October 1995

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S. M. Perold, National Botanical Institute, South Africa

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Abstract

A taxonomic account is given ot the genus Plagiochasma Lehm. & Lindenh. and its two subgenera. Micropvlum Bischl. and Plagiochasma. The first subgenus is represented in southern Africa by P. rupestre var. rupestre (J.R. & G. Forst.) Steph. and P. rupestre var.  volkii Bischl.: the second by  P. appendiculatum Lehm. & Lindenb. (newly recorded for the region).  P. heccarianum Steph.. P eximium (Schiffn.) Steph. and P. microcephalum (Steph.) Steph. var. microcephalum. Descriptions and illustrations of these taxa together with distribution maps and a key to the subgenera and species are provided.


Keywords

Hepaticae; Marchantiales; <i>Plagiochasma appendiculatum</i>; <i>P. heccarianum</i>. <i>P. eximium</i>; <i>P. microcephalum</i> var. <i>microcephalum</i>; <i>P. rupestre</i> var. <i>rupestre</i>; <i>P. rupestre</i> var. <i>volkii</i>; southern Africa

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