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



134. Orthotrichum rupestre. Schleich. 



Rare. " On basaltic rocks near the Giant's Causeway, 1837 ; Fairhead, 

 Antrim." — Moore, Proc. R. I. Acad., Series II., Vol.' I., No. 8. 



135. O. affine. Schrad. 



On trees, and sometimes on stones — very common throughout the district. 

 3-6. 



136. O. Sturmii. Hop. atid Hornsch. 



Rare. "Fairhead, Antrim." — Moore, Proc. R. I. Acad., Series II., 

 Vol. I., No. 8. 



137. O. CUPULATUM. Hoffm. 



On rocks, but more often on stones in streams — not rare, abundant where 

 it occurs. " On rocks at Fairhead." — Moore, Herb. Coll. Sc. Dublin. Glynn 

 near Larne, Kilroot, Glenoe, North Woodburn stream, in a little stream near 

 Trench House The Falls (Antrim). — S.A.S. 1-5. A fine moss, with gla- 

 brous inflated veil, and large nearly globular sporangium : all the specimens 

 I have met with belong to the var. nudmn, and are very different in aspect from 

 what we expect from descriptions of this species. 



138. Ptychomitrium polyphyllum. Br. and Schimp. 



On rocks and stones in hilly districts, and sometimes on bushes — very 

 abundant from the Deny mountains to the Mourne range. 11 -4. 



139. Glyphomitrium Daviesii. Schwaeg. 



On basaltic and granitic rocks — rare. "On rocks at Fairhead." — Flor. 

 Hib. ' ' On the basalt at Giant's Causeway, also at Fairhead and Rathlin 

 Island, Antrim."— Moore, Proc. R. I. Acad., Series II., Vol. I., No. 8. 

 Abundant at the " Grayman's Path " Fairhead ; on trap rocks, Ballygalley 

 Head (Antrim); on granite rocks, Slieve Donard (Down). — S.A.S. 



140. Racomitrium canescens. Bridel. 



Stony heaths, and sandhills— not uncommon. "Frequent on rocks through 

 Co. Antrim." — Moore, Herb. Coll. Sc. Dublin. Carrickfergus Commons, 

 Woodburn, Belfast Hills (Antrim) ; stony heath, Newtownards ; sandhills, 

 Newcastle (Down).— S.A.S. 1-3. 



141. R. lanuginosum. Bridel. 



Mountain heaths — common in Antrim, Derry, and Down. At 1,700 feet 

 on Slieve Croob, and over 2,500 on Slieve Donard (Down). 11-4. 



