PLATE XXX. 

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



Note. — Nachet's objectives i, 3 and 5, oculars i and 2, with camera lucida. 

 All drawings are reduced % in photo-engraving. The magnification figures 

 here printed are true for the drawings as printed. 



Figs, i, a-t. Cynodontium treleasei. 



1, a. Entire plant, natural size. 



I, i. Leaf (X 34)- 



I, c. Apex of the leaf ( X I3S)« 



I, </. Perichsetial leaf ( X34)' 



I, e. Capsule ( X 13)' 



I,/. Lid (X 30). 



I, g. Basal areolation of the leaf ( X i35)- 



1, h. Marginal areolation in the middle ( X 270). 



1, /. Areolation in the upper part ( X270). 



2, a-b. Dtchodontium pelliicidum kodtakanum. 

 2, a. Leaves ( X 13)- 



2, b. Apex of the leaf ( X^o). 



3, a-f. Dicranum subjlagellare. 

 3, a. Entire plant, natural size. 

 3,3. Leaf (X 26). 



3, c. Apex of the same ( X i35)' 



3, d. Basal areolation ( X I35)- 



3, e. Areolation in the middle of a leaf ( X 270). 

 3,_/". Areolation in the upper part ( X 270). 



4, a-e. Tricliostomum ctispidatissimum. 

 4, a. Entire plant, natural size. 



4, 3, b. Leaves (X3S)- 

 4, c. Basal areolation ( X i35)' 

 4, d. Areolation in the middle of a leaf ( X I35)' 

 4, e. Areolation of the upper part ( X i35)* 

 [348] (308) 



