PLATE VII. 



1. Hypnum palustre. 



a. leaves, magnified. 



b. sporangium, magnified. 



2. H. molle. 



a. leaves, magnified. 



b. sporangium, magnified. 



3. H. arcticum. 



a. leaf, magnified. 



b. sporangium, magnified. 



4. H. stramineum. 



a. leaf, magnified. 



b. sporangium, magnified. 



5. H. trifarium. 



a. leaves, magnified. 



6. H. cordifolium. 



a. leaves, magnified. 



b. young veil, magnified. 



c. sporangium, magnified. 



