434 baker's north Yorkshire. 
3. A. cpassinervis. Bruch. 
Montane A. Range 2-3. 
(High rocks above Falcon Glints, near to Caldron Snout, 
Upper Teesdale). (Slater and Anderson 1853). 
Fruiting 7-8 mths. 
The locality given for this moss is on the north side of 
the river Tees, consequently in the county of Durham. 
The rich botanical portion of Upper Teesdale, from the 
High Force to Caldron Snout, would generally be investi- 
gated on both sides of the river by any botanists exploring 
the district, and most of the rare plants are found on both 
sides of the river, so I ventured to include the rare mosses 
found in this small tract of the adjoining county, putting 
in brackets the few which have hitherto not been recorded 
from the Yorkshire side of the river. 
4. A. Rothii. Web. and Mohr. 
Montane B. Range 2-3. 
In Upper Teesdale at Cronkley Fell on limestone rocks, 
and at Falcon Clints on Basalt (Spruce.). 
Plentiful in Upper Teesdale and Lunedale. Upon the 
Coverdale Slope of Great Whernside. Amongst the Eastern 
hills, on the freestone crags of Lonsdale, Baysdale, and 
Ingleby Moor (Baker). 
Var. falcata. (Schp.). Lindb. 
On high basaltic rocks near Caldron Snout, Upper 
Teesdale, growing with the normal form (M.B.S.). 
Fruiting 6-7 mths. 
Fam. 2. BUXBAUMIACE.^. 
(Buxbaumia, Haller. 
Two species only are known in Britain of this rare genus 
of mosses, neither of which have hitherto been met with 
in North Yorkshire.) 
