62 



Chlorophycece 



Fig. 14. Dioecious nannandrous species of (Edogonium. A, a form of GE. undula- 

 tum (Brb.) A. Br., from Pilmoor, N. Yorkshire. B, (E. cyathigerum Wittr., 

 from Bawcliffe Common, W. Yorkshire. C, (E. ciliatum (Hass.) Pringsh., 

 from near Senens, Cornwall (x460). oo, oogonium; n, naunandrium or 

 dwarf-male; a, antheridium. 



