62 



Chlorophycece 



Fig. 14. Dicecious nannandrous species of (Edorjonium. A, a form of (E. undula- 



' tnm (Breb.) A. Br., from Pilmoor, N. Yorkshire. B, (E. cyathigerum Wittr., 



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



from near Senens, Cornwall ( x 460). oo, oogonium; n, naunaudrium or 



dwarf-male; a, antheridiurn. 



