542 Watson.—-Sphagna : Habitats , Adaptations , and Associates. 
Fig. 4. Sphagnum cuspidatum var. phtmosum. a. Portion of the plant showing a fascicle of 
branches, x 5. The positions of two other fascicles are indicated. B. Branch-leaf, x 23. c. Cells 
of the branch-leaf viewed from the outer surface, x 300. d. Cells viewed from the inner surface, 
x 300. E. Transverse section of branch-leaf, x 300. 
S. pulchrum. f. Branch-leaf, x 23; apical portion forming a tube, x 45. G. Transverse 
section of branch-leaf, x 300. 
S. cot 7 ipactum. H. Branch-leaf, x 23. 1. Transverse section of branch-leaf, x 300. 
S. medium. J. Branch-leaf, x 23. K. Cells as seen from inner surface of branch-leaf, x 300. 
L. Cells from outer surface, x 300. m. Transverse section of branch-leaf, x 300. 
All the leaves (unless otherwise stated) are figured as seen from the inner surface. The incurved 
portions of the leaves are shaded. In a figure of a leaf-section the outer surface is placed uppermost. 
