48 CALIFORNIA ACADEMY OF SCIENCES. [PROC. 30 Ser. 



EXPLANATION OF PLATE IL 



Nitophylliiin latissiinmn. 



Fig. 4. Typical cystocarpic plant, showing portion of prostrate frond, vena- 

 tion, proliferation, cystocarps, and a portion of the creeping, 

 claw-like prostrate frond. One-third natural size. 



Nitophyllum spectabile. 



Fig- 5- Typical tetrasporic plant, showing prostrate frond, young and 

 mature erect fronds, and position and shape of sori. One-third 

 natural size. 



