Studies in the genus &lt;i&gt;Riccia&lt;/i&gt; (Marchantiales) from southern Africa. 20.,&lt;i&gt;R. albovestita&lt;/i&gt; and its synonyms, &lt;i&gt;R. duthieae&lt;/i&gt; and &lt;i&gt;R. sarcosa&lt;/i&gt;
Bothalia