68 MOSSES. 



SUB-ORDER VIL— POTTIEiE. 



XXI.— POTTIA. 



P. truncata. Br. and Schimp. 2-3. 

 In fallow-fields and on banks. 



SUB-ORDER VIII.— TRICHOSTOMEiE. 



XXV.— DIDYMODON. 



D. rubellus. Br. and Schimp. 10. 

 On walls, rocks, etc. Shobnall. 



XXVI.— TRICHOSTOMUM. 



T. mutahile. Bruch. 6-7. 



Shady banks, moist rocks, etc. Near Park Pond. 



XXVII— TORTULA. Screw Moss. 



T. amhigua. Br. and Schimp. 11-12. 

 On walls, marly banks, etc. Shobnall. 



T. unguiculata. Hedw. 12. 



Banks and hedges, frequent. About Park Pond, etc 



T. HornscJiUchiana. Schultz. 4-5. 

 Walls, rocks, and marly banks. Shobnall. 



T. muralis. Timm. 4-5. 



"Walls and stones. Very common in and about Repton. 



T. ruralis. Hedw, 3-4. 



On walls, roofs of buildings, etc., frequent. 



