202 HISTORY OF BRITISH MOSSES. 



culated, their margins tliickened, serrated; nerve reacliiug 

 a little beyond the point ; capsule ovate (or oblong)^ pen- 

 dulous ; lid shortly rostrate. — E)i(j. Fl. p. 64. Mnium ser- 

 ratum, Miill. Sijn.pt. \. p. 164. 



On the ground in woods and in moist stony places of the 

 more northern districts of England, Wales, and Ireland, and 

 more frequently in the subalpine parts of Scotland. Fr. June, 

 A small species of the section, but very neat and symmetri- 

 cal in habit. Its foliage when growing is of a pale green 

 colour, becoming somewhat lurid when in a dried state ; and 

 Bruch and Schimper mention a curious phenomenon re- 

 garding the foliage, viz. that these pale green branches, if 

 moistened in water, assume a bluish tint. The margin and 

 nerve of the leaf and the annulus of the capsule are usually 

 of a deep red colour, and the calyptra also partakes of 

 that shade. 



29. Bryum hornum, Schreb. {Swan' s-neck Thyme Thread 

 Moss.) Stems elongated; leaves lanceolate, acute, reticu- 

 late, their margins thickened, denticulate; nerve generally 

 disappearing below the summit; capsule oblongo-ovate, 

 / pendulous; lid hemispherical, mucronulate. — Eng.FLp.Q^;. 

 Mnium hornum, 31illl. Syn.pt. 1. p. 165. 



In shady woods and on rocks, preferring spots where there 



