1960] 



MORPHOLOGY AND RELATIONSHIPS OF DIOMMA 



43 



Fig. 2. A-D, Diomma spp., stamens to illustrate nature of staminal appendages. A, B, 

 D. ulei from female flower. C, Diomma species A, from female floAver. D, Diomma 

 species B, from male flower. E, Sohnreyia excelsa stamen showing structure and orientation 

 of ala as compared with those in Diomma, A-D, and Spathelia, F-I. F-I, Spathelia spp. show- 

 ing variable nature of staminal alae in this genus. F, S. cubensis from male flower. G, S. 

 subintegra from female flower. H, S. simplex from male flower. I, S. glabrescens from male 

 flower. All drawings diagrammatic. 



