OF WESTERN' PEXXSYLVAXIA 



163 



Beaver 

 Butler 



Crawford 



Erie 

 Favette 



Huntingdon 

 Lawrence 



Mercer 

 McKean 



Somerset 

 Washington 



Library. April 29, 1906, Power's Run, 

 May 18. 1907, and April 16, 1910, Brush 

 Creek, April 26, 1908, Montrose, Sep- 

 tember 21, 1905. O. E. T. 



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



: Winfield Junction, June 7, 1902. I. A. 

 S.: Crider's Corners* April 26, 1908. O. 

 E. J. 



: Pymatuning Swamp, Linesville, May 18, 



1905, June 12, 1905, and May 12, 1908. 

 O. E. J. : Xear Mud Lake, Hartstown, 

 May 29-31, 1909. O. E. J. and G. K. J. 



: Presque Isle, on leaf mould in oak woods. 

 May 8-9, 1906. O. E. 1. 



: Ohio Pyle. May 12, 1905, May 30, 1908, 

 (Figured), and June 13, 1908. O. E. 

 J. ; Cheat Haven, September 3-6. 1910. O. 

 E. I. and G. K. ]. 



: Birmingham, May 17. 1904. O. E. J. 



: Slippery Rock Creek, above Wurtemberg, 

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

 J.; Slippery Rock. 1906. Miss Susan 

 ( ia ebv. 



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



: Bennett Brook, April 7, 1893, and May 8. 

 1897, West Branch, April 7. 1893, Quin- 

 tuple, Tune 15, 1896. D. A. B. 



: Ursina, May 12, 1895. O. E. J. 



: Three miles south of Library. April 22, 



1906. Xorth Branch Maple Creek, Char- 

 leroi. April 24, 1908. Hanlin. May 21. 

 1908. O. E. J. 



7. Mnium medium Bryologia Europzea. 



(Astrophylhtm medium Lindbergh 



(Plate XXI) 



Widely and rather loosely cespitose. large, light to dark 

 green: stems erect, up to 5 cm. in our specimens, branching 

 at the base, densely covered with a brown felted tomentum, 

 sterile shoots long and prostrate or ascending; leaves distant, 

 little shriveled when dry. ovate to oblong, somewhat narrowed 

 and slightly decurrent at base, rather obtuse at apex, cuspi- 

 date, narrowly margined all around, sharply serrate from near 

 the base with mainly one-celled teeth, the cqmal leaves rosu- 

 late, and up to 5X15 mm.; costa reddish, strong, excurrent 

 cuspidate ; leaf-cells large, rounded above to elliptic-hexagonal 

 towards base, the margin consisting of about two rows of 



