26 American Midland Naturalist Monograph No. 6 



In bogs, margins of quiet rivers and lakes, wet places in woods, etc.; a cos- 

 mot>olitan, occurring in North America from Labrador and Alaska south to 

 British Columbia, California, Texas, and Florida. 



In our region thus far found in Allegheny, Bedford, Butler, Crawford, Erie, Fayette, 

 Lawrence, McKean, Warren, Westmoreland, and Somerset counties. 



4a. Sphagnum palustre var. squarrosulum (Nees and 

 Homschuch) New Combination 



(5. cymbijolium var. squarrosulum Nees and Homschuch; S. latifolium var. 

 squarrosulum (Nees and Homschuch) Jennings, Manual, 1913) 



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 especially in the comal branches being rather abruptly 

 squarrulose. 



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. 



Now known from the following counties: Beaver, Blair, Centre, Crawiford, Fayette, 

 Indiana, Somerset and Westmoreland. Specimen figured: In crevices of rock-bed of river 

 near fails, Ohio Pyle, Fayette Couny, Sept. 1-3, 1906. O.E.J, and G.K.J. 



4b. Sphagnum palustre var. brachycladum (Schliephacke) 



New Combination 



(5. cymbijolium var. virescens f. brachycladum Schliephacke; 

 S. latifolium var. brachycladum (Schliephacke) Jennings) 



Bluish-green or glaucous, yellowish below; branches short and closely 

 placed along a short stem, giving the plant a congested appearance; leaves 

 rather loosely imbricated and at their tips slightly squarrulose. 



Centre Co.: In bog at Scotia, in the "Barrens," Sept. 22, 1909. O.E.J. Somerset 

 Co.: Along rivulets in swamp on e. flank of Negro Mt., 3 miles from Salisbury. Paul R. 

 Stewart. July 2, 1944. 



5. Sphagnum magellanicum Bridel 



(5. medium Limpricht; S. cymbijolium var. compactum Russow) 



Plate III 



Deeply cespitose up to 8-10 cm, gray-green to bluish-green, rose-red to 

 purple-red above, brownish or somewhat bleached below; stems rather densely 

 branched, the cuticular sheath consisting of 3-5 layers, distinct, the outer cells 

 smallest, porose and weakly fibrillose, the wood-cylinder castaneous to rose- 

 red, thick-walled; stem-leaves about 1.5 mm. long, (1-2 mm), broadly lingulate- 

 spatulate, the upper margins and the broadly rounded apex fimbriate; the 

 upper hyaline cells of the stem-leaves usually fibrillose and dorsally porose; 

 branches usually short, two slender and appressed to the stem, pendent, and 

 two horizontally spreading or somewhat up-curved, thick-fusiform, the comal 



