404 Williams: Mosses from west coast of South America 



Plate 25 



Physcomitrium Roseae. i. Plant, X 5. 2. Leaf, X 14. 3. Apex of leaf, X 100. 

 4. Cells about rim of capsule, X 100. 5. Cells at base of capsule surrounding a 

 stoma, X 100. 6, Median cells of leaf, X 100. 7. Cells of lid from margin to center, 

 X 100. 8. Basal cells of leaf from margin to near the costa, X 100. 9. Part of 

 cross-section of leaf near the middle, X 100. 



Philonotis fragilicaulis. 10. Plant, about natural size. 11 and 12. Stem leaves, 

 X 23. 13. Median cells of leaf showing mamillae at the lower and under surface, 

 X 183. 14. Leaf at apex, X 183. 15. Basal cells of leaf from margin to costa, 

 X 183. 16. Part of cross-section of leaf near the middle, X 183. 17. Part of 

 cross-section of leaf a little below the middle, X 183. 



