OETHOTEICHUM. 177 



the Muscology of Teesdale, mentions that it " is more abun- 

 dant in upper Teesdale than any other of the genus, and 

 may be met everywhere on shrubs and young trees/' Fr. 

 August. This is a beautiful species, somewhat resembling 

 the common 0. crispum, also a woodland tenant, from which 

 the specific character given above will distinguish it. It is 

 named after the illustrious Drummond, who first discovered 

 it. It is found also in Norway, but does not seem abun- 

 dant in any district of Europe. 



■^■^ Peristome double. 



t Capsule immersed. 



4. Oethotrichum apfine, Schrad. {Vale StraigJd-leaved 

 Bristle Moss.) Stems erect; leaves erecto- patent, flaccid, 

 broadly lanceolate ; capsule deeply furrowed ; teeth of the 

 peristome eight, geminate ; cilia filiform ; calyptra slightly 

 haiiy.— ^«v7^. FL p. 5-i; 311111. 8ijn.pt. I. p. 705. 



On trunks of trees, and old pales; very common. Fr. 

 August. This is the species of Orthotrichun most likely to 

 meet the eye of the young muscologist, who will be able to 

 distinguish it from the above description, though it varies 

 in size and in the hairiness of the calyptra. 



5. Orthoteiciium stramineum, Hornsch. [Strato-Uke 

 Bristle Moss.) Stem branched ; leaves spreading when dry, 



