PLATE XIII. 



Note. — Nachet's objectives i, 3 and 5, oculars 1 and 2, with camera lucida. 

 All drawings are reduced X * n photo-engraving. The magnification figures 

 here printed are true for the drawings as printed. 



Figs, i, a-i. Cynodontt'um treleasei. 



1, a. Entire plant, natural size. 



i,b. Leaf (X 34)- 



1, c. Apex of the leaf ( X I 35)- 



1, d. Pericha^tial leaf ( X34)- 



1, e. Capsule ( X x 3)- 



1,/ Lid (X 30). 



1, g. Basal areolation of the leaf ( X I 35)- 



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



1, i. Areolation in the upper part ( X 2 7°)- 



2, a-b. Dichodontium pellucidum kodiakanum. 

 2, a. Leaves ( X 13)* 



2, b. Apex of the leaf ( X60). 



3, a-f. Dicranum subflagellare. 

 3, a. Entire plant, natural size. 

 3 ,b. Leaf (X 26). 



3, c. Apex of the same ( X : 35)- 

 3, d. Basal areolation ( X 1 Z5)- 



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

 3,y. Areolation in the upper part ( X270). 



4, a-e. Trichostomum cusfiidatissimum . 

 4, a. Entire plant, natural size. 



4, b, b. Leaves ( X35)- 



4, c. Basal areolation ( X I 35)« 



4, d. Areolation in the middle of a leaf ( X 135)- 



4, e. Areolation of the upper part ( X : 35)- 



(348) 



