EXPLANATION OF PLATE VI 



Mnium 



Fig. I. M. cuspidahim. 

 Fig. la. Leaves of M. cuspidahim, enlarged. 

 Fig. 2. Double peristome of Mnium, enlarged. 

 Fig. 3. M. cinclidioides. 

 Fig. 3a. Leaf of M. cinclidioides, enlarged. 

 Fig. 4. M. hornnm. 

 Fig. 4a. Leaf of M. hormim, enlarged. 

 Fig. 5. M. punctahim var. datum. 

 Fig. 5a. Leaf of M. punctatum var. elatum, enlarged. 

 Fig. 5b. Tip of leaf of M. punctatum var. elatum showing 

 cell-structure, enlarged. 



