ACOTYLEDONS. — Musci. Tortula, 127 



1. C.fontinaloides. Muse. Brit. p. 29. /. 11. Fontinaiis mi- 

 liar ^ Lightf. p. 695. 



Hab. On stones and wood in water. Collington, G. Don. Border 

 of Loclinell, Capt. Carmichael. 



Four to six inches long, dark green. Leaves elliptico-lanceolate, acu- 

 minate, margined, entire, flexuose, curled when dry, nerve stout. 

 Fndtstalks shorter than the oblong capsule. 

 12. TORTULA. 



Fruitstalks terminal. Teristome single, of 32 filiform, twisted 

 teeth, more or less united at the base by a tubiform mein- 

 hrane. Calyptra dimidiate. Hook. & TayL Muse. Brit. p. 30, 

 t.2. 



1. T. muralis, stems short, leaves patent lineari-oblong their mar- 

 gins recurved, nerve produced beyond the leaf into a white 

 hair-like point, capsule oblong, hd conical acuminate. Muse, 

 Brit. p. 30. t. 11. Bryiim murale, Light/, p. 720. 



Hab. On walls and stones. 



2. T. ruralis, stems elongated, leaves oblong carinated patent 

 and recurved, nerve terminating in along generally diaphanous 

 serrated point, capsule oblong, lid subulate, teeth of the pe- 

 ristome united below into a tube. Muse. Brit, p. 30. t. 12. 

 Bryum riirale, Lightf. p. 720. 



Hab. Roofs of houses, on trees and banks. 



3. T. subulatUy stems very short, leaves oblongo-lanceolate acu- 

 minate the nerve excurrent often forming an apiculus, cap- 

 sule cylindrical, lid conico-subulate, teeth of the peristome 

 united nearly to the apex into a long tube. Muse. Brit. p. 3\. 

 t. 12. Bryum suhdatum, Lightf. p. 719. 



Hab. Banks, common. 



4. T. stellata, stems scarcely any, leaves ovate concave, nerve 

 running beyond the points, capsule ovate striated, lid rostrate. 

 Muse. Brit. p. 32. t. 12. 



Hab. Scotland, Dickson. 



5. T. torluosa^ stems elongated branched, leaves lincari-subu- 

 late carinate undulate much twisted when dry, capsule cylin- 

 drical, lid rostrate. Muse. Brit. p. 32. t. 12. Bryum ior- 

 tuosum, Lightf. p. 727. 



Hab. Rocky places. Pentland hills, Mr. GrevUle. Angus-shire, 

 G. Don. 



6. T.^oZ/crj:,stems elongated branched, leaves lanceolato-subu- 

 late patent or recurved their margins reflexed, capsule oblong, 

 lid rostrate nearly as long as the capsule. Muse. Brit. p. 32. 

 t. 12. 



Hab. Walls, banks, and in fields among grass. 



7. T. revoluia, stems short, leaves lanceolate acuminate the 

 margins of those of the stem remarkably revolute-, perichaetial 



