206 HISTOllY OF BRITISH MOSSES. 



curious knots, plaitings, and projecting liairs. — Eng. FL p. 

 66; MillLSi/n.2Jt.\.p. 189. 



Eocks on the banks of the river Islay, Porfarsliire ; dis- 

 covered by Mr. Drummond in 1824. The fruit of this in- 

 teresting Moss has not been found in Britain, but from its 

 being tolerably widely distributed in tlie mountainous dis- 

 tricts of the Continent, our readers may in this way have 

 opportunities of adding it to their herbarium. Its capsule 

 at once reminds one of the larger species of Brpim, while 

 its foliage is that of the Catharinea or Atrlchum section of 

 Tolytrichum, and in this order it is placed by Bruch and 

 Schimper. 



BAHTRAMIA, Ilecho. (Apple Moss.) 



Named in compliment to John Bartram, an American 

 botanist and traveller. A natural and interesting genus, in- 

 habiting our rocks, moors, and marslics. Some of the species 

 have much afliuity with other genera. 



* Seta elongated, straight. 

 1. Bartuamia pomiformis, Hediv. {Common Apple 

 1^- Moss.) Leaves patent, subulate, strongly serrated, twisted 

 when dry, the nerve reaching to the summit; the stems 



