Stewart — List of Mosses of North-East of Ireland. 65 



175. TORTULA HORNSCHUCHIANA. Schultz. 



Very rare. ' ' On the walls of the old castle at Carrickfergus, Co. Antrim." — 

 Moore, Proc. R. I. Acad., Series II., Vol. I., No. 8. I have collected a moss 

 growing on Carrick Castle, which seems to be this species, but I could find no 

 fruit. Dr. Moore inlorms me that this moss was named T. gracilis by the late 

 Dr. Taylor. 



176. T. revoluta. Schwaeg. 



On walls — common. Carrickfergus, many places about Belfast, Derriaghy 

 (Antrim) ; Donaghadee, Carrowdore (Down). — S.A.S. 4-5. 



177. T. CONVOLUTA. Hedw. 



Old walls and quarry debris — not uncommon, abundant where it occurs. 

 Knockagh (Antrim) ; wall on Castlereagh Hill, quarry heaps Moira, in the 

 greatest profusion on old walls near Legacurry, Hillsborough, walls Ban- 

 bridge (Down). — S.A.S. 4-6. 



178. T. UNGUICULATA. Hedw. 



Clay banks, stone dykes, quarry heaps, and sometimes on walls — very 

 common. 12-4. 



179. T. muralis. 7imm. 



Walls and rocks — the commonest moss in the district. 1-5. 



VAR. D. rupestris. A well marked form, and usually much larger— fre- 

 quent on rocks in hilly districts. 



180. T. lamellata. Lindb. Pottia cavifolia, var. gracilis. Bryol. Brit. 



In small quantity on ditch bank by roadside between Millisle and Bally- 

 walter (Down). — S.A.S. In fruit, 2nd February, 1874. 



181. T. ALOIDES. Br. and Schimp. 



Clay banks and walls —not common. On trap debris near Blackhead and 

 the Gobbins, ditch bank a little north of Trooper's Lane Station (Antrim) . 

 wall of bridge close to Dundonald Station, wall Ballylesson, clay bank near 

 Drum Bridge, stone dyke People's Park, clay bank on roadside near 

 Groomsport (Down). — S.A.S. 9-1. 



182. T. AMBIGUA. Wils. 



Debris of rocks, and sometimes on ditch banks. Squire's Hill. — Mr. H. 

 Knight. Limestone debris, Whitewell ; on new red sandstone, Derriaghy (An- 



