PLATE XXXVII. 



FIGS. 



[Proc. Wash. Acad. Sci., Vol. IV, PI. XX.] 



, a-g* Bryum treleasei. 

 , a. Entire plant, natural size. 

 b,b. Leaves (Xi3)- 

 , c, c. Transverse section of a leaf ( X I 35) 



d. Basal areolation of the same ( X J 35) 



e. Marginal areolation in the lower part ( X I 35) 



f. Areolation of the apex ( X J 35)- 



. Young capsule, in moist state ( X 13)- 

 2, a-7i. Bryum agattuense. 

 2, a. Entire plant, natural size. 

 2, b, b. Stem-leaves ( X J 3)- 



2, c. 

 2, d. 

 z,e. 

 *>/> 

 *>& 



2, //. 



[362] 



Branch-leaf ( X 13)* 



Basal areolation ( X 



Areolation in the middle ( X J 3S)' 



Areolation of the apex ( X X 35)' 



Capsule unripe, in dry state (X I 3)- 



Capsule ripe, in moist state ( X I 3) 



(322) 



