Explanation of Plate XXVIII. 



1. Oymnostomum patulum. 



Plant nat. size, and capsule enlarged. 

 a, h. Leaves enlarged, 

 c, d, e. Portion of leaves greatly enlarged. 



2. Gymnostomum hnightii. 



Capsule enlarged. 

 a, h. Leaves enlarged, 

 c, d. Portion of leaves greatly enlarged. 



3. Gymnostomum calcareum var. intermedium. 



Capsule enlarged. 

 a, b. Leaves enlarged. 

 c. Portion of leaf greatly enlarged. 



4. Gymnoatomum sulcatum. 



Plant enlarged. 

 a. Operculum and calyptra enlarged. 

 h, c, d. Leaves enlarged. 



e. Portion of leaf greatly enlarged. 



5. Gymnostomum areolatum. 



Plant enlarged. 

 a. Leaf enlarged. 

 h. Portion of leaf greatly enlarged. 



(). Gymnostomum, angustatum. 



Capsule enlarged. 

 a, h. Leaves enlarged. 



f. Portion of leaf greatly enlarged. 



