OF WESTERN PENNSYLVANIA 355 



oblong, cernuous, incurved, when dry contracted below the 

 mouth; lid conic, slenderly rostrate, the beak long and re- 

 curved; peristome-segments nearly as long as teeth, cilia 

 usually 3, about as long as segments, nodose to weakly ap- 

 pendiculate; basal membrane reaching almost to middle of 

 inner peristome; teeth narrowly lanceolate, yellowish-brown, 

 with distinct divisural, moderately trabeculate ; annulus large ; 

 exothecial cells rectangular to hexagonal, yellowish-incrassate, 

 or brownish ; spores yellowish-incrassate, finely papillose, 

 about .009-.012 mm. in diameter, mature in September and 

 October. 



In shaded woods on leaf-humus, old logs, etc., from New- 

 foundland to the Gulf States and west to the Mississippi River, 

 also in British Columbia and Alaska. Very common in our 

 region. 



Allegheny : Forty pockets representing collections 



from almost all sections of the county, 

 various data. Figured from specimens 

 from Darlington Hollow, Aspinwall, Oc- 

 tober 25, 1908. O. E. J. 

 Armstrong : Kittanning, September 24, 1904, and Oc- 

 tober 21, 1905. O. E. J. ; Buttermilk Falls, 

 August 22, 1903. D. R. Sumstine. 

 Beaver : T. P. James. (Porter's Catalogue). 



Butler : Swampy woods near Crider's Corners, 



December 29, 1908. O. E. J. 

 Fayette : Eleven pockets, Ohio Pyle, various dates, 



O. E. J., and O. E. J. and G. K. J. ; Cheat 

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

 G. K. J. 

 Washington : Charleroi, October 13, 1905. O. E. J. and 



G. E. K. 

 Westmoreland: Mellon's estate (Rachelwood), Laurel 

 Hill Mountain, September 8-11, 1907. O. 

 E. J.; Chestnut Ridge above Hillside, 

 September 16-17, 1909, and "Shades," near 

 Blackburn, March 25, 1910. O. E. J. and 

 G. K. J. 

 Cambria : Cresson. T. P. James. (Porter's Cata- 



logue). 

 McKean : Quintuple, January 17, 1894. D. A. B. 



GLOSSARY OF BRYOLOGICAL TERMS USED IN THE 



MANUAL 

 Acaulescent, stemless. 



Acrocarpous, with the fruit terminal on the stem or branch. 

 Acumen, a slenderly tapering apex, — acumination. 

 Acuminate, narrowly and slenderly tapering at the apex. 



