Thread-moss 



Stem. 



by the enlarged vein; the upper 4 to 6 

 in a rosette, each leaf broadly oval, 

 tapering toward the base; apex slightly 

 notched, with a sharp point in the notch; 

 margin entire, brown, thick and hard; 

 vein purplish, abruptly vanishing near 

 apex, extending down the stem. 



Habit of flowering. Male and female 

 flowers on separate plants (dioicous}\ 

 male plants more slender than the female, 

 with but few stem leaves, and the leaves at the summit arranged 

 as a rosette about the male flowers (antheridia). 



Veil (calyptra). Split up one side, remaining on the spore- 

 case all winter but falling early in the spring. 



Spore-case. Oval, green when mature, brown when older, 

 ovate-oblong, somewhat pendulous, finally horizontal. 



Stem with 



hairs. 

 M. punclatum. 



Apex of Ic.if. 



Spore-cacc T7ith lie! 



Leaves. 



Spore-case without lid. 



Var. elatum. 



Spore-case with lid. 



AI. pnnctatum. 

 133 



