OF WESTERN PENNSYLVANIA 



325 



ing clearly differentiated auricles, strongly decurrent ; the 

 apical leaf-cells much smaller, incrassate, rhomboid : seta about 

 2.5-4 cm. long, flexuous, dextrorse above when dry, slender ; 

 capsule-urn about 2.5 mm. long, sub-erect to horizontal, cylin- 

 dric and with a distinct neck, arcuate to nearly symmetric, 

 when dry and empty sometimes striate ; lid conic, obtusely 

 acuminate to long-acuminate, about one-third as long as the 

 urn ; annulus usually 2-seriate, large, revoluble ; exothecial 

 cells rounded-quadrate, small at rim, gradually larger and more 

 oblong below, all incrassate ; peristome-teeth lance-subulate, 

 hyaline and papillose above, yellowish and dorsally cross- 

 striolate below, strongly lamellate and trabeculate, confluent 

 at base; segments slender, as long as the teeth, basal mem- 

 brane one-third as high, cilia 2 or 3, usually 3, slender, nodose ; 

 spores smooth, medium-walled, yellowish, .008-.011 mm., ma- 

 ture in summer. 



On stones, humus, and rotten wood, in moist forests ; 

 cosmopolitan in temperate and cooler regions ; in North 

 America from the Arctic regions to the northern United 

 States. Very common in our region. 



Allegheny 



Butler 



Cambria 

 Clearfield 



Erie 

 Fayette 



Jefferson 

 Lawrence 



McKean 

 Westmoreland 



Eighteen pockets determined, collected in 

 various localities, mainly on earth or 

 rocks in ravines. Mostly O. E. J. and 

 G. K. J. 



On base of Ouercns platanoides, in low 

 ground along Brush Creek, Crider's Corners, 

 'April 26, 1908. O. E. J. 

 Ebensburg. T. P. James. ( Porter's Cata- 

 logue). 



Between Clearfield and Pottersdale, July 

 12, 1908. O. E. J. 

 Presque Isle, May 8-9, 1906. O. E. J. 



Ohio Pyle, May 30-31, 1908. O. E. J. and 

 four miles south of Ohio Pyle, September 

 1-3. 1906. O. E. J. and G. K. J. ; Cheat 

 Haven. September 3-6, 1910. O. E. T- and 

 G. K. J. 



Falls Creek, July 18, 1904. O. E. J. (Fig- 

 ured). 



Gorge below Ellwood City, June 26, 1909. 

 O. E. J. 

 Bolivar Run. September 6, 1897. D. A. B. 



Miss K. R. Holmes. Apollo, 1902: two 

 miles south of Trafford, August 21, 1910. 

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



