ACROCARPOUS MOSSES. ' 517 
On Strensall Common, abundant (Stabler and Slater 
1883). 
Fruiting 6-7 mth. 
B. Mildei Juratz. 
Montane A. Range 2. 
Wet rocks by waterfalls, rare. 
On Holwick Scar, and Maize Beck, Upper Teesdale. 
Sterile (Spruce 1843). 
Fruiting 7-8 mths. very rarely. 
20. B. alpinum Huds. 
Montane B. Range 1-2. 
Moist sub-alpine rocks, not uncommon. 
On Falcon Glints, Cronkley and near High Force, Teesdale 
(Spruce 1843). 
Frequent upon dripping rocks in Teesdale from the Falls 
of Maize Beck eastward to Lonton. In Yoredale, at the 
waterfall in Skell Gill near Askrigg (Baker). 
Var. fS meridionale (Schpr.). 
On rocks by the sea, at the base of Peak Gliff near 
Robin Hood's Bay (M.B.S. 1888). 
At Kisdon Force, Upper Sw^aledale (Barnes). 
Fruiting 6-7 mths. very rarely. 
21. B. paliens Swartz. 
Montane B. Range 1-3. 
On rocks and stones by streams, and on wet ground. 
On Strensall Gommon and Stockton Forest near York. 
At Welburn and Grambeck in the Gastle Howard district, 
also in Upper Tees near Winch Bridge and Ettersgill 
Beck (Spruce. 1843). 
Frequent in damp places amongst the hills from the central 
valley to the peaks of the upper zone (Baker). 
June, 1905. 
