Jennings: Manual of Mosses — 31. Hypnaceae 249 



2. Campylium chrysophyllum (Bridel) Bryhn 



{Hypnnm chryfophyllurn Bridel; Chrysohypnum chrysophyllum 

 Loeske; Amblystegtum chrysophyllum De Notaris) 



Plate XLV 



Ce^pitose in low, lax, or dense, bright golden-green tufts or mats; stems 

 slender, rather long, prostrate, more or less regularly pinnate, the branchlets 

 erect or spreading; leaves close, small, 1-1.5x0.4-0.8 mm, squarrose-spreading 

 from the sub-clasping base, sometimes secund, stem-leaves ovate-cordate to tri- 

 angular-cordate, decurrent, narrowed abruptly to a long somewhat channeled 

 acumination, entire or very slightly denticulate at base; branch-leaves similar 

 but smaller and narrower; costa single, reaching about to the middle or higher; 

 median leaf-cells about 5-10:1, about .005-. 010 mm wide, rather incrassate, 

 the alar forming a group of small, incrassate, sub-opaque, sub-quadrate cells: 

 seta castaneous, about 2-2.5 cm long, slender, fle.xuous; capsule oblong-cylindric, 

 inclined to horizontal, arcuate, castaneous to orange; lid conic-apiculate; annu- 

 lus large, compound; peristome normally hypnoid, the teeth yellowish, hyaline- 

 margined, strongly trabeculate, dorsally lamellate, cross-striolate below, hyaline 

 and papillose above; the segments not usually carinately split, the cilia stout, 

 nodose, 2 or 3, and about as long as segments, basal membrane one-half as 

 high as sigments; spores in early summer, light brown, smooth, .010-. 012 mm: 

 dioicous. 



On earth, stones, roots of trees, etc., in moist places; Europe, Asia, and, in 

 North America, from Canada to the southern and southwestern United States. 

 Common in our region excepting on the High Plateau. 



Now known from Allegheny, Beaver, Butler, Crawford, Erie, Fayette, Indiana, Law- 

 rence, McKean, Washington, and Westmoreland counties. Specimen figured: P/matun- 

 mg Swamp, Linesville, May 12, 1908. O.E.J. 



3. Campylium polygamum (Schimper) Bryhn 



{Hypnum polygamum Wilson; Chrysohypnum polygamum Loeske) 



Plate XLVI 



Moderately robust, yellowish-green to golden, low, cespitose: stems erect 

 to ascending, about 3-6 cm long, divided and with rather numerous, irregularly 

 pinnate, rather crowded, and erect or ascending branchlets; stem-leaves lance- 

 ovate, 2-2.5 mm long, moderately close, erect-spreading both wet and dry, 

 with an ovate or oblong base narrowed above into a long, gradually tapering, 

 channeled acumination, entire, the base rounded and clasping, somewhat decur- 

 rent; branch-leaves elongate-lanceolate, with the sides tapering in a straight line 

 from the rounded-ovate base, the leaves averaging about 3 mm long; median 

 leaf-cells narrowly linear, about 8-12:1, in the older leaves somewhat incras- 

 sate, towards the base often porose, the alar sub-rectangular, somewhat enlarged, 

 distinct, forming often orange-pellucid auricles; costa not very strong but dis- 

 tinct and usually reaching somewhat above the middle of the leaf: seta slender, 

 flexuous, about 3-4 cm long; capsule oblong-cylindric, curved; lid conic-apicu- 



