PLATE V. a. Fruiting Polytrichum commune, X i. dry. b. The same 

 moist with the calyptra removed, c. Leaf of the same, X 10. d. Capsule of 

 the same, X 5- e. Capsule of P. Ohioense, X 5. f. Male plant of P. com- 

 mune, X i- g and h P. piliferum, dry and wet X i- o. Leaf of P. 

 juniperinum, X 10. 6. Portion of the same, X 30. p. Leaf of P. 

 piliferum, X 10. 



