308 A MANUAL OF MOSSES 



below ; branch-leaves narrower, otherwise similar to the stem- 

 leaves, about as long ; costa short and double or none ; median 

 leaf -cells linear-vermicular, about 10-15 :1, the basal broader 

 and more or less orange-pellucid, the alar cells sub-quadrate, a 

 few somewhat inflated at the esttreme angles, forming a small 

 but quite distinct auricular patch of an orange-brown color, 

 all cells rather incrassate ; perichsetial leaves plicate, ecostate, 

 spinose-serrulate above : seta about 3 cm. long, castaneous, 

 sinistrorse when dry; capsule cylindric, nearly erect, slightly 

 curved, about 3—4 mm. long, castaneous, about 4-6:1 ; lid con- 

 vex at base with an oblique long-acuminate point; peristome 

 normally hypnoid, the teeth strongly trabeculate, the trabeculae 

 often dividing, the lamellae and divisural distinct, cross-strio- 

 late below; the segments about as long, sliglitly carinately 

 split, the basal membrane reaching about two-fifths as high, 

 the cilia articulate and usually single ; annulus compound, ad- 

 herent; exothecial cells yellowish-pellucid, laterally quite in- 

 crassate, oblong-quadrate to long-rectangular ; spores yellow- 

 ish, medium- wajled, minutely roughened, about .013-.015 mm., 

 mature in late autumn or early winter. 



On earth, stones, roots, logs, etc., with us mainly on 

 humus or rotten wood, in moist woods ; Europe, Asia, and 

 from Canada southwards to California and Georgia. Very 

 common in our region. 



Allegheny : Eighteen pockets determined, various lo- 

 calities, collectors, and dates. Figured 

 from specimen from Wildwood Road 

 Hollow, November 19, 1908. O. E. J. 

 Armstrong : Kittahning, September 24, 1904. O. E. J. 

 Cambria : Cresson. T. C. Porter. (Porter's Cata- 



logue). 

 Crawford : Linesville, May 10-11, 1906, and June 11- 



12, 1907. O. E. J. 

 Elk : McMinn. (Porter's Catalogue). 



Erie : Presque Isle, May 8-9, 1906. O. E. J. 



Fayette : Twenty-six pockets determined, various 



dates and collectors, mainly Ohio Pyle 

 and Cheat Haven. 

 McKean : Quintuple Ridge, November 13, 1896. 



D. A. B. 

 Somerset : Keystone, October 9, 1904. O. E. J. 



Washington : North Branch, Maple Creek, above Char- 

 leroi, April 24, 1908. O. E. J.; Linn and 

 Simonton. (Porter's Catalogue). 

 Westmoreland : Near Apollo, 1902. Miss K. R. Holmes ; 

 Mellon's estate. Laurel Hill Mts., near 

 New Florence. O. E. J. September 8-11, 



