Bibliotheca Botanica Heft 45. 
Tafel 20. 
Verlag ro„ F.nvin Kiigele i„ Siutlgni-t. 
O. ]'. Ii,nhisl,irf phot. 
Fig. 90, 91. Roccella Gayana Mtg. 
Fig. 92, 93. Roccella decipiens Darbish, 
Fig-. 94. Roccella Balfourii Müll.-Arg. 
