CONTRIBUTIONS 



TO 



BRYOLOGY AND HEPATICOLOGY. 



( Communicated to the Academy, August 12th, 1846.) 



1. PHYLLOGONIUM NORVEGICUM, Brid. Bryol. Univ. 2, 

 p. 674. Muse. Alleghan. n. 188. 



IT may be doubted if this rare moss and the tropical Pterigynan- 

 drum fulgens, Hedw., the type of Phyllogonium, Brid., are refer- 

 able to the same genus. A striking dissimilarity in habit, mode of 

 growth, and in the position of the female flowers (which are termi- 

 nal in the one, but lateral in the other), as well as the structure 

 and reticulation of the leaf, all indicate their separation generi- 

 cally. The genus of our moss must remain uncertain until the 

 discovery of its fruit, which we may now expect, since a second 

 locality has been found, in Ohio, producing both male and female 

 plants abundantly. The notice of this moss in the Bryologia Uni- 

 versa is evidently founded on infertile plants alone, collected in 

 Norway, the original locality. Our Ohio specimens furnish the fol- 

 lowing additional particulars. 



Caules plerumque simplices, rarissime e medio vel e summitate 

 innovantes. Folia, illis caulium sterilium exceptis, versus apicem 

 2 ' 



