44 



DUDLEY MEMORIAL VOLUME 



of the same region, much resembles the plant in question, but the latter is 

 readily distinguishable on account of the numerous dark reddish purple 

 rhizoids. 



Fig. 2. A, female plant 1x3; the thallus has begun active growth again and 

 developed a second archegonial receptacle, o. 1 , in the new portion. B, part of one 

 of the involucral scales, slightly magnified. C, female plant bearing a young 

 sporophyte, sp. D, plant with mature sporophyte. E, open capsule with the valves 

 entirely separated at the apex. In, involucre ; per, perianth. 



The material collected by the writer was sufficient to make possible a 

 pretty complete study of the structure and development of the plant, except 

 the earlier stages of the sporophyte which were wanting in the specimens 

 collected. 



