Hair-cap Mosse 



P. urnigerum. 

 Spore-case with lid. 



Veil (calyptrd). Yellow-brown, covering the spore-case. 



Spore-case. Erect, red-brown, 

 cylindrical or egg-shaped, con- 

 tracted below the mouth when 

 dry, the surface rough with tiny 

 projections (papillose), the neck 

 nearly smooth. P. rg*nn. one 



" row of lamellfe 



Pedicel. Red-yellow, slender, ceiis. the terminal 



I tO l inches long. cell papillose. 



Lid (operculunt). Broad, coni- 

 cal, beak short and straight, sur- 

 face rough with tiny projections. 



Teeth (peristome). Thirty-two, 

 symmetrical, short and broad. 



Spores. - - Mature in autumn 

 and winter. 



Distribution. Universal 

 The Alpine Hair-cap Moss, Pogonatum Alpinum, (L.) 

 Roehl. 



Habit and habitat. Growing in wide mats on rough stony 

 and grassy places on all mountains. This is a 

 pretty moss, larger than most Hair-cap mosses 

 and may be readily distinguished from the others 

 by its smooth spore-case, narrower at the mouth 

 than below, obliquely inclined to the red pedi- 

 cel, and by its veil which does not reach to the 

 base of the spore-case. 



Name. The name refers to its habit of grow- 

 ing in mountain regions. 



Plant (gametophyte). Erect, 2^ 

 to 7 inches high, the branches at- 

 taining an equal height, and densely 

 leafy; stems naked and subterra- 

 nean at the base. Male plants i to 2.\ 

 inches high. 



Leaves. - - Erect, or recurved, 

 narrowly lance-shaped; apex awl- 

 from lamellae, shaped, spiny on the back; base 



terminal cell pap- ^j^ scathing, 



red, serrate; lamellae numerous P - AI P, Leaf, 

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