196 A MANUAL OF MOSSES 



Crawford : Linesville, June 6, 1904, May 12, 1 ( J08. 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 

 Indiana 

 Lawrence 

 Mercer 

 Me K can 



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

 Cherry Tree, July 11, 1908. O. E. J. 

 New Castle, 1906. Miss Susan Gageby. 

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

 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, Xew Florence. September 

 8-11, 1907, Trafford 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 inibricate-ap- 

 pressed, base h}"aline, 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 lamellae 

 ventrally, dorsally more or less papillose or dentate; lamella 

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

 ly 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 

 .015-.018X-030-.040 mm., somewhat brownish-pellucid, incras- 

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

 bro,wn-pellucid, much incrassate, rounded cells, about .010-.015 

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



