— 53 — 



Plate VIII. — Trichodon tenuifolius 

 (i) Plant, XI- (2) Leaf, X18. (3) Leaf-tip, X400. (4) Cross section leaf - 

 vein, X400. (5) Cells of leaf-middle, X400. (6) Cells of leaf-base, X400. (7) 

 Capsule, X 22. 



Plate IX. — Trichodon borealis 

 (i) Capsule, X50- (2) Part of base of lid, X270. (3) Portion of the peristome, 

 X270.— (After R. S. Williams.) 



