OF WESTERN PEXXSYLVAXI A. 63 



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

 America, from Alaska to Nova Scotia and southwards to \Yest 

 A irginia. Rather common in our region. 



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



tember 10, 1906. O. E. J. 



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



Elk : Me Minn. (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 Xiles Hollow, 

 October 21. 1894. D. A. B. 



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



above Xew Florence, September 8-11, 



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

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



4. Dicranella varia [ Hedwig] Schtmper. 



(Plate VII) 



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 

 rlexuous. 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 cliff, Powers Run, November 



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

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



