Original Research

Studies in the genus Riccia (Marchantiales) from southern Africa. 18. New species in section Pilifer from the NW Cape: R. furfuracea, R. vitrea and R. namaquensis

S. M. Perold
Bothalia | Vol 20, No 2 | a912 | DOI: https://doi.org/10.4102/abc.v20i2.912 | © 1990 S. M. Perold | This work is licensed under CC Attribution 4.0
Submitted: 16 October 1990 | Published: 17 October 1990

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Abstract

Another three new species of Riccia in section  Pilifer Volk are described from Namaqualand, namely  R. furfuracea, R vitrea and R. namaquensis. There are certainly more undescribed species present in that region, but species from there are often very difficult to distinguish: almost all have hyaline scales, the free-standing dorsal cell pillars need to be examined in living plants and the spore ornamentation is quite variable.


Keywords

Marchantiales; Namaqualand; section <i>Pilifer</i>; Riccia. southern Africa, taxonomy

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