PLATE XXXVII. 

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



FlGS. , a-g. Bryum treleasei. 



a. Entire plant, natural size. 

 , b, b. Leaves (X *3)- 

 , c, c. Transverse section of a leaf ( X 135)- 



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



e. Marginal areolation in the lower part ( X 

 ,/. Areolation of the apex ( X *35)- 



. Young capsule, in moist state ( X I3) 

 2, a-h. Bryum agattuense. 

 2, a. Entire plant, natural size. 

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

 2, c. Branch-leaf ( X 13)- 

 2, d. Basal areolation ( X 135)- 

 2, e . Areolation in the middle ( 

 2,/. Areolation of the apex ( X 

 2, g. Capsule unripe, in dry state ( X 1 3)- 

 2, h. Capsule ripe, in moist state ( X I 3)- 

 [362] (322) 



