226 A MANUAL OF MOSSES 



most hypnaceous peristotnes, sometimes perforate, (lacunose) 

 above; segments distinct, linear, very narrow, carinate, hyaline, 

 very slightly granulose-roughened, entire, nearly as long as the 

 teeth, arising from a very narrow basal membrane; cilia none; 

 spores papillose, incrassate, castaneous, about .016-.020 mm., 

 mature in late autumn or early winter. 



On leaf-mould, rotting logs, bases of trees, etc. ; Europe, 

 and, in America, from New Brunswick to Ontario and south 

 to the Gulf States. Common in our region. 



Allegheny : Wildwood Road Hollow. March 29, 1909. 



O. E. J. and G. K. J. (Figured) ; 33 other 

 pockets from various localities in the 

 county. 



T. P. James. (Porter's Catalogue). 

 Valencia, September 27, 1904. O. E. I. 

 Linesville, August 3, 1909. O. E. J. 



Beaver 



Butler 



Crawford 



Indiana 



Fayette 



J, and G. K. J. 

 Lawrence ; Gorge below Ellwood City, October 14, 



1910. O. E. J. and G. K. J. (Figured). 



T. P. James. (Porter's Catalogue). 

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



MoKean 



Washington 



Westmoreland 



Quintuple, June 15, 1896. D. A. B. 

 Linn and Simonton. (Porter's Catalogue). 

 Shades, near Blackburn, March 25, 1910. 



O. E. J. and G. K. J. 



3. Entodon seductrix (Hedwig) C. Mueller. 

 (Ncckcra seductri.r Hedwig; Cylindrothecium seductrix Sulli- 

 vant). 



(Plate XXXIII) 



Robust, widely cespitose in glossy yellowish-green mats: 

 branches sub-pinnately arranged, slender, julaceous, up to 2 

 or 2.5 cm. long; leaves about 0.8-1.4 mm. long, broadly oblong- 

 ellipitic to ovate, imbricate, deeply concave, short-apiculate 

 with the apiculation often reflexed, margin plane, entire, or 

 sometimes slightly serrulate, at base often slightly reflexed, 

 base of leaf slightly narrowed ; costa short and double ; median 

 leaf-cells linear- to oblong-prosenchymatous, alar cells quad- 

 rate, slightly incrassate, forming a distinct group sometimes 

 extending along the margin for one-fourth the length of the 

 leaf; perich^etial leaves with a slender acumen, narrower and 

 reaching a length of about 3 mm. : seta glossy, red-castaneous, 

 erect, sinistrorse, about 1.5 cm. long; capsule 2-3 mm. long, 

 castaneous, about 5-6:1, cylindric, erect, symmetric or slightly 

 curved; exothecial cells yellowish with medium walls, rectan- 

 gular to irregularly oblong, towards the rim smaller, quadrate 

 to laterally oblong incrassate, and forming a rather indefinite 



