STEIL: POLYPODIUM IRIOIDES 277 
A young prothallium produced by the transformation of an anther- 
00. 
G. 12. A small prothallium similar to above. 
sateen present. XX 200. 
Fic. 13. a ania aac with eee ting aan 
Fic. 14. k h ox 230. 
Fic. 15 Neca and a small prothallium produced fron the neck of an 
archegonium. 200. 
Fic. 16. Aa gathers (a) devel df tl k of From 
this pipe a secondary éntheridifuns (b) has been formed. XX 200, 
ate of cells produced from the n of an eat Two 
17. A 
Hy Gatto have been formed from the mn Hae plate. xX 
