OF WESTERN PENNSYLVANIA 



167 



reaching- to one-tliird the height, cilia usually three, slightly 

 shorter than segments ; spores smoothish, round, about .028- 

 .033 mm.; fruiting in spring rather early (April), and some- 

 times with two or three capsules to a plant. 



On soil in damp woods, ravines, swamps, etc. Rather 

 common. Europe, Asia, all North America down to middle 

 United States. 



Allegheny : Schenley Park, Pittsburgh, June 7, 1904. 



O. E. T-; Wildwood Hollow, March 29, 

 1908. b. E. J. and G. K. J. 

 Elk : McMinn. (Porter's Catalogue). 



Huntingdon : Porter. (Porter's Catalogue). 

 Lawrence : Rock Point, October 15, 1910. O. E. J. 



and G. K. J. 

 McKean : Gates Hollow, May 3, 1896. D. A. B. 



Mercer : Houston Junction, July 12, 1902. J. A. .S. 



Westmoreland: Shades, above Blackburn, March 2.^, 1910. 

 O. E. J. (Figured). 



10a. Mnium punctatum var. elatum Schimper. 



(Plate XXI II) 



This variety differs typically from true punctatiun in that it 

 grows in muddy shaded places and swamps, is much larger, — 

 in our specimens reaching" a height of 7 or 8 cm. and with 

 leaves up to 10 or 11 mm. long, the leaves are rounded and 

 usually non-apiculate at apex, the border consisting of usually 

 but one layer of cells, ancl the costa ending below the apex. 



In swamps and muddy shaded places : Europe, .A.sia, and, in 

 North .A.merica, from the Arctic regions south to Virginia, Michi- 

 gan, and Idaho. In Pennsylvania most of the specimens of puncta- 

 tum show some of the characters of the variety but we have found 

 no specimen which clearly possesses all the characters attributed 

 to the variety. The following specimens more or less closely ap- 

 proach the variety : 



Wildwood Hollow, November 19, 1908. 

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



Pymatuning Swamp, Linesville, June 11- 

 :2, 1907 O. E. J. 

 Ohio Pyle, July 4, 1908. O. E. J. 

 Slippery Rock Creek, above Wurtemberg, 

 October 16, 1910. O. E. J. and G. K. J. 

 In overflow of cold spring. Railroad Run, 

 ilay 21, 1899, in swamp along Foster 

 Brook, May 22,1894. D. A. B. 

 Houston Junction, July 12, 1902. J. A. S. 

 (Figuied). 



Westmoreland : Shades, above Blackburn, March 25, 1910. 

 O. E. J. 



Allegheny 



Crawford 



Fayette 

 Lawrence 



McKean 



Mercer 



