PLATE XXII. 



Rhacomitrium aciculare nevii. (i) Plant, Xi- (2) Cross section through leaf margin, X550. 

 (3) Capsule, Xi7- (4). (5") Perichaetial leaves, Xi7- (6) Cells of leaf-tip, X400- 



PLATE XXIII. 



Rhacomitrium depressum. (i) Plant, Xi. (2), (3), (4), (5) Leaves. X17. (6) Capsule, 

 Xi7. (7) Part of cross section of leaf, X550. (8) Cells of leaf-base, X400. (9) Cells of leaf- 

 middle. X400. (10) Leaf-tip, X400. 



97 



