Explanation of Plate XXVIII. 





1. Gymnostomnm patulum. 



Plant nat. size, and capsule enlarged. 

 a, b. Leaves enlarged. 

 c, d 9 e. Portion of leaves greatly enlarged. 



2. Gymnostomum JcnightiL 



Capsule enlarged. 

 a, 6. 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. Gymnostomum sulcatum. 



Plant enlarged. 



a. Operculum and calyptra enlarged. 



b, c, d. Leaves enlarged. 



e. Portion of leaf greatly enlarged. 



5. Gymnostomum areola turn. 



Plant enlarged. 



a. Leaf enlarged. 



b. Portion of leaf greatly enlarged. 



6. Gymnostomum ancjustatum. 



Capsule enlarged. 

 a, b. Leaves enlarged. 



c. Portion of leaf greatly enlarged. 





