VI J/OSSES (MUSCI): SPHAGNACE^— ANDREW ACE.-E 179 



quite as likely that the older view that ArcJiidiuin is a degenerate 

 form is correct. At any rate, until more convincing evidence 

 can be brought forward in support of a direct connection between 

 it and the Hepaticai than the formation of the spores directly 

 from the central tissue of the sporogonium, it cannot be said 

 that the question of its real affinities is settled. 



