OF WESTERN PENNSYLVANIA 165 



way, non-fenestrate, the segments and usually three cilia finely 

 papillose above and often exceeding the teeth ; spores round, 

 yellowish-pellucid, finely papillose, about .028-.030 mm. : dioi- 

 cotis ; antheridial flower terminal-discoid ; mature in May. 



On rocks and soil in swamps and moist woods, Asia, Eu- 

 rope, and in Xorth America through southern Canada south 

 to Georgia. Louisiana, Missouri. Montana, and California. 



Crawford : On rotten stump in swampy woods, 



Linesville. June 12, 1907. O. E. J. 



Fayette : Ohio Pyle. September 1-3, 1906. O. E. 



J. and G. K. J. (Figured). 



McKean : Langmade, May 29, 1898, and Bolivar 



Run. September 11. 1898. D. A. B. (Fig- 

 ured, as to fruit). 



Washington : Washington, Linn and Simonton. (Por- 

 ter's Catalogue). 



Westmoreland : "Rachelwood," Xew Florence, September 



8-11, 1907. O. E. J. 



8/7. Mnium affine var. rugicum (Laurar) Bryulogia Eurnpcea. 



(Astrophyllum rugiciiiii Lindberg). 

 (Plate XXII) 



Darker green than true affine, almost blackish : stems short, 

 usually simple : leaves oblong to broadly oval or sub-orbicular, the 

 apex blunt and rounded with an apiculation or almost entire, the 

 margin little or not at all serrate: capsule much as in affine var. 

 ciliare but usually smaller. The leaves often very closely resemble 

 those of M. rostratnni but Grout says the leaf-cells have thinner 

 walls in ntgicnni and also radiate in more or less definite series 

 from the costa, while in rostratnni the thick- wailed cells arc ir- 

 regularly arranged, or at least not in radiating series. 



In cool, shaded ravines and swamps ; Europe, and, in Xorth 

 America, from Greenland to Alaska and locally south to 

 Louisiana and Colorado. 



Allegheny : Power's Run, April 18. 1906, and Tune 



17, 1909, O. E. J.; Wildwood Hollow, 

 March 29, 1908, and Coraopolis, Septem- 

 ber 14, 1905. O. E. J. and G. E. K. All 

 sterile. 



Beaver : Beaver Falls, May 11, 1907. O. E. J. 



Sterile. 

 Fayette : Cheat Haven, September 3-6, 1910. O. 



E. J. and G. K. I. (Figured). Ohio Pyle, 



September 1-3, 1907. O. E. J. and G. K. 



J. ( Both sterile.) 



