I 62 
F. Cavers. 
some striking parallelisms with the Astroporae on one hand and the 
Composite on the other. In the structure of the carpocephalum 
Fig. 19. Operculatce .—I, Plagiochasma rupestris, female plant with three car- 
pocephala ; II, Reboulia hemisplierica, with a carpocephalum; III , Grimaldia 
Jragrans ; I V, Ncesiella rupestyis, with two carpocephala and four male recep¬ 
tacles ; V, Fimbriaria Lindenbergiana, with a carpocephalum and two male 
receptacles. 
