314 



FRYE 



4. Polytrichum inconstans Hagen, in Nyt. Mag. Naturvid. 



1900, p. 339. 



Inconstans = inconstant; just how this applies to this species the 

 writer does not know. 



Plants 8 cm. or less. Stems rather uniformly leaved above, with 

 a felt of dark red rhizoids below. 



Leaves somewhat distant, irregularly spreading, 6 mm. long or 

 less, lanceolate; lamina under lamellae 2 cells thick, between lamellae 



Fig. 21. Polytrichum inconstans. 



1 = Moist antheridial plant; d = antheridial disk, X i. 2 = Dry plant, X i. 

 3 = Leaf showing lamellae on upper side, X 15. 4 = Leaf tip, X 65. 5 = Cross 

 section of part of leaf showing margin, height of lamellae, and form of marginal cells. 

 (No. 5 after Williams). 



and margin i cell thick. Margins plane below, erect or somewhat 

 incurved above, minutely serrulate. Lamellae 24 or less, the median 

 ones 5-9 cells high; marginal cells sometimes 2 side by side, not 

 papillose, oblong, wider than long (about as 2 : i), scarcely or not 



