68 
IV. WOODSIA. 
This covering consists, first, of very long pointed narrow 
scales which are more particularly abundant about the 
mid-rib; secondly, of jointed 
shining hairs, which are 
scattered nearly over the 
whole surface; and thirdly 
of the capillary segments of 
the involucres themselves, 
which are also jointed and 
shining. The fronds die down 
on the approach of frost, and 
are renewed in spring. 
This is one of the rarest of 
our indigenous species, grow- 
ing hi exposed rocky alpine 
regions, and there very spar- 
ingly. The Falcon Clints 
and Cauldron Spout, in Tees- 
dale, Durham; Clogwynn-y- 
Garnedd, one of the highest 
peaks of Sno wdon, and Llynn- 
y-cwn, on Glyder Vawr, in 
Wales ; and Moffat, Dum- 
fries ; Ben Chonzie, Ben Law- 
ers, and the Clova Mountains 
in Scotland, are the chief re- 
corded localities. In these 
places it grows sparingly, 
rooting into the crevices of 
the damp rocks. It occurs 
in the most northern parts of , 
the northern hemisphere, as 
far as Greenland. 
[Woodsia hyper boreoj 
1. Woodsia hyperborea, R. Brown. Alpine 
Woodsia. Fronds pinnate linear-lanceolate ; pinnae bluntly 
triangular, pinnatifid with rounded usually entire lobes. 
