Studies in the genus <i>Riccia</i> (Marchantiales) from southern Africa. 27. <i>Riccia lanceolata</i> and <i>R. radicosa</i> now also locally reported

Abstract

Riccia lanceolata and R. radicosa are newly reported from southern Africa. Riccia lanceolata is quite widespread in sub-Saharan Africa, whereas R. radicosa has only been collected once before, namely in the Democratic Republic of the Congo (Zaire). Both species are assigned to the group ‘Squamatae’, section Riccia, subgenus Riccia. but are easily distin­guished from one another.

Keywords

• <i>Riccia lanceolata</i> Steph.. <i>Riccia radicosa</i> Pearson
• sporangia
• spores
• thallus