OF WESTERN PENNSYLVANIA. 29 



In bogs, margins of quiet rivers and lakes, wet places in 

 woods, etc. ; a cosmopolitan, occurring in North America from 

 Labrador and Alaska south to British Columbia and Florida. 

 In our region not uncommon. 



Allegheny : Vicinity of Pittsburgh, 1902. Otto Hatry. 

 Crawford : Bog near Mud Lake, Hartstown, May 29-31, 



1909. O. E. J. and G. K. J. 

 Erie : Eastern end of Cranberry Pond, Presque Isle. 



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

 3a. Sphagnum latifolium variety squarrosulum (Nees and 



Hornschuch) New Combination. 

 (S. cyinbifolhim var. squarrosiduin Nees and Hornschuch). 

 As compared with the typical species this variety has 

 usually a darker or more bluish-green color : the leaves have a 

 more abruptly narrowed apex, the apical third of the leaf es- 

 pecially in the comal branches being rather abruptly squar- 

 rulose. 



Probably with a world-wide distribution with the typical 

 form but in our region more common and apparently more 

 partial to less decidedly boggy situations. 



Beaver : Bog one mile north of New Galilee, June 22, 



1908. O. E. J. 

 Blair : Rhododendron Park, Lloydsville, October 19, 



1901. J. A. S. 

 Center : Headwaters of I-aurel Run, Tussey's Mt., 



near Shingletown, July 15, 1909. O. E. J. 

 Crawford : Pymatuning Swamp, near Linesville, August 



19, 1904. O. E. J. (Fruiting specimens). 

 Fayette : Near Falls in crevices of rock-bed of river, 

 Ohio Pyle, September 1-3, 1906. O. E. J. and 

 G. K. J. (Figured). 

 Indiana : Boggy banks of Cush Cushing Creek, near 



Cherry Tree, July 12, 1908. O. E. J. 

 Snyder : Bog near Richfield, July 17, 1908. O. E. J. 

 2>b. Sphagnum latifolium variety brachycladum (Schliephacke) 

 New Combination. 

 {S. cymbifolhim var. virescens forma brachyclada Schlph.). 

 Bluish-green or glaucous, yellowish below; branches short 

 and closely placed along a short stem, giving the plant a con- 

 gested appearance; leaves rather loosely imbricated and at 

 their tips slightly squarrulose. 



Center : In bog at Scotia, in the "Barrens," September 22, 

 1909. O. E .J. 



