OF WESTERN PENNSYLVANIA. 63 



Usually on damp, bare soil, in Europe, Asia, and, in North 

 America, from Alaska to Nova Scotia and southwards to West 

 Virginia. Rather common in our region. 



Beaver : Clay bank of creek, New Galilee, Sep- 



tember 10, 1906. O. E. J. 



Cambria : Gallitzin. James. (Porter's Catalogue). 



Elk : McMinn. (Porter's Catalogue). 



Fayette : Clay roadside, Ohio Pyle, September 1-3, 



1906. O. E. J. and G. K. J. 

 Huntingdon : Porter. (Porter's Catalogue). 

 McKean : Tuna Creek, Bradford, October 18, 1894, 



and March 31, 1895, and Niles Hollow, 

 October 21, 1894. D. A. B. 

 Westmoreland : On elevated clay soil. Laurel Hill Mts., 

 above New Florence, September 8-11, 



1907. (Figured). O. E. J.; "Shades," 

 near Blackburn, June 13, 1908. O. E. J. 



4. Dicranella varia [Hedwig] Schimper. 

 (Plate VH) 



Densely gregarious to cespitose, bright to yellowish- 

 green ; stems short, usually about 5-7 mm. high, ascending to 

 erect, branching at base ; leaves up to 2.5 mm. long, linear- 

 lanceolate, gradually narrowed to a long-linear acumination, 

 spreading to recurved, not very secund, when dry somewhat 

 flexuous, margin narrowly revolute, entire, excepting some- 

 times at the very apex somewhat denticulate ; costa wide and 

 not well-defined, percurrent and comprising a large portion of 

 the acumen ; basal leaf-cells rather thin-walled, rectangular or 

 with oblique end-walls, 2-6:1, gradually becoming smaller 

 and narrower above, the upper being about 2-4:1 and some- 

 v/hat incrassate, all smooth and more or less yellowish- 

 pellucid : seta yellowish-brown to castaneous, ascending to 

 erect, about 5-8 mm. long, sinistrorse ; capsule ovate to ob- 

 long, more or less cernuous, reddish to pale castaneous, curved, 

 smooth, together with lid about 1-1.25 mm. long; lid about 

 as long as urn, rostellate ; peristome-teeth large, lance-subulate, 

 cleft to middle, strongly articulate, finely striate-papillose, rich 

 castaneous below, sub-hyaline above ; spores yellowish, rather 

 thick-walled, minutely roughened, .020-024 mm., mature in 

 late autumn or in winter. 



On bare clay soil in fields, on ledges, etc. Widely dis- 

 tributed in the Northern Hemisphere ; in North America from 

 Nova Scotia to Alaska and south to Georgia. 



Allegheny : In niches on clifif. Powers Run, November 

 30, 1909. (Figured). O. E. J. 



McKean : Bennett Brook, October 23, 1897. D. A. B. 



