Pi,aTE VI, a. Pogonatum brevicaule, X '^- a'- Leaf, X 15. a"- Cap- 

 sule, X 10. b. P. urnigerum, X 2. b'. Leaf, X 10. c. P. alpinum, X 2- 

 c'. Leaf, X 10. c". Capsule, X 10. 



