PLEUROCARPOUS MOSSES. 57 I 
Common upon trees, and occasionally on walls in the low 
country, and amongst the hills, mostly sterile (Baker). 
Fruiting- ii mth., very rarely fruiting. 
Cpyphaea W. et M. 
I. C. arborea (Huds.) Lindb. 
(C heterojnalla Hedw.) 
Range i. 
On trunks of trees, rare. 
Upon trees in the low country, in several places. Nea 
Croft, Thirsk, Carlton in Cleveland, Egton Bridge, and 
Ampleforth (Baker). 
On Beech trees near Castle Howard, and on trees in 
Eskdale side, near Whitby (Spruce, 1842). 
Fruiting 6-9 mths. 
Hedwig'ia Ehrh. 
I. H. albicans (Web.) Lindb. 
[H. ciliata Dicks.) 
Montane B. Range 1-2. 
On rocks in exposed hilly districts. 
In Teesdale, on the scars from Cronkley eastwards to 
Lonton. Amongst the eastern arenaceous hills on rocks 
and walls in several places ; Loundsdale, Houlsike in 
Eskdale, Ladhill Gill, Osmotherley, and on the basaltic 
ridge over Great Ayton (Baker). 
Near White Force, Upper Teesdale (Spruce, 1843). 
Fruiting 3 mth. 
August, 1905. 
