200 SfNOPSIS Of BRITISH MOSSES. 



. Alpine rocks, stones, &c. August, Septemljer. 



Ben Challum (McKinlay). 



474. B. rutabulum, Linn. St. long, loosely tufted, 

 procumbent, and rooting at extremities, with erect 

 branches. L. patent, broadly ovate, lanceolate, acumi- 

 nate, serrulate, striate when dry, thinly nerved above 

 half way, basal cells broad, shortly hexagonal at base. 

 Caps, ovate oblong, arcuate, cernuous, on a very 

 rough seta, lid bluntly pointed. Monoicous. 



September — March. 

 Banks, walls, and trees. Common. 



475. B. campestre, B. and 8. St. loosely caespitose, 

 prostrate or ascending, much branched. L. erecto- 

 patent, longly ovate-lanceolate, more or less subulato- 

 acuminate, serrulate, thinly nerved more than half way, 

 plicate, shining; per. 1. recurved, squarrose from the 

 middle, piliferous. Caps, oblong-cylindrical, subarcuate, 

 on a slightly roughened seta. 



Grassy places, fields, &c. Winter and spring. 



Maresfield, Sussex (Mr. Mitten) ; Spec, in Herb. 

 Kew. "Newchurch, Over, Cheshire, W. W., Dec. 13, 

 1837." 



478. B. rivnlare, Bruch. St. arched, slender. Br. 

 slender, incurved, subpinnate. L. deltoid-ovate, gra- 

 dually tapering, not suddenly acuminate, serrate, nerved 

 above half way, decurrent, margin plane or recurved. 

 Caps, short, roundish ovate, arcuate, cernuous, lid 

 large, conical, acute, rostellate. Dioicous. Autumn. 



Stones, &c., by rivulets in shady woods ; sometimes 

 in water, when the stems are often very elongate. 



479. B. populenm, Hedw. St. creeping, subpinnate. 

 L. narrowly ovate-lanceolate, tapering to a long, serru- 

 ate point, concave, margin plane, nerved to apex^ 



