196 A MANUAL OF MOSSES 



Crawford : Linesville, June 6, 1904, May 12, 1908 O 



E.J. 



Erie : Presque Isle, June 9-11 and September 



20-22, 1906. O. E. J. 



Fayette : Ohio Pyle, May 13, 1905. O. E. J., Sep- 



tember 10, 1905. September 1-3, 1906, 

 and September 1-3, 1906, and September 

 1-3, 1907 (Figured), and Cheat Haven, 

 September 3-6, 1910. O. E. J. and G. K. J. 



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



Indiana : Cherry Tree, July 11, 1908. O. E. j. 



Lawrence : New Castle, 1906. Miss Susan Gageby. 



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



McKean : Marilla, July 5, 1896, Rutherford, July 29, 



1896, September 16, 1898, Beardsley's 

 Run, June 7, 1896, Bennett, May 30, 1897. 

 D. A. B. 



Washington : Hanlin, May 21, 1908. O. E. J. 



Westmoreland: Jacob's Creek, August 10, 1902, Laurel- 

 ville. May 30-31, 1903. J. A. S.; Delmont, 

 June 28, and July 3, 1903. Miss Kath- 

 erine Holmes ; Saunders' Station, June 

 22, 1907. O. E. J. and G. K. J. ; Hillside, 

 May 23, 1908, May 22, 1909, and Septem- 

 ber 16-17, 1909, New Florence, September 

 8-11, 1907, Traflford August 22, 1910. O. 

 E.J. 



2. Polytrichum piliferum Schreber, Hedwig. 

 (Plate XXVIII) 

 Rather loosely cespitose, light green, rather glaucous: 

 stems simple, erect, 1-4 cm. high, purplish-brown, radiculose 

 slightly at the base, leafy only in the upper 1 cm. or there- 

 abouts; leaves when moist ascending, when dry imbricate-ap- 

 pressed, base hyaline, rounded-oblong, about 1.5 mm. long, the 

 limb narrowly lanceolate, about 3 mm. long with wide mar- 

 gins inflexed and in the upper part meeting or over-lapping, 

 the apex abruptly terminating in a hyaline, linear, dentate 

 arista about 1 mm. long ; costa wide, with about 25-35 lamelltC 

 ventrally, dorsally more or less papillose or dentate; lamellae 

 usually of 6-7 cells, the terminal one slightly wider and apical- 

 !y abruptly elongate; leaf-cells in alar region of sheathing base 

 quadrate to rectangular or hexagonal, hyaline, slightly incras- 

 sate, in middle of sheathing part larger, rectangular, about 

 .01 5-.018X -030-040 mm., somewhat brownish-pellucid, incras- 

 sate, at base of limb abruptly passing into rather opaque or 

 br<i,wn-pellucid, much incrassate, rounded cells, about .010-.015 

 mm. in diameter, in reflexed margin of limb larger and ir- 



