WOODSIA. 
19 
SUB-ORDER II. 
POLYPOD I ACEJE. 
Tribe 2. DICKSONIE/E. 
THE OBLONG WOODSIA. 
Woodsia ILVENSIS. — R . Brown . 
A diminutive mountain fern with fronds 
from 2 to 4 inches long. This plant grows 
in the crevices of damp rocks. The fronds 
are lanceolate-pinnate, the pinnae being 
profoundly pinnatifid. The rachis, stipes, 
. and underside of the frond chaffy, and the 
sori scattered. It is a deciduous fern, and 
requires growing under a bell-glass. Ex- 
ceedingly rare, and found at altitudes of 
from 1,200 to 3,000 ft. Mr. Joseph Side- 
botham discovered it in Carnarvonshire ; 
and it has been found in Westmoreland, 
• Cumberland, and Durham, one locality 
near the Caldron Spout, Teesdale (in an 
inaccessible place, E. J. L.). In Scotland, 
near Loch Skene (Rev. W. Little) to the 
North of Moffat (P. Gray), hills between 
Dumfries and Peeblesshire (abundant, 
Mr. W. Stevens), near Crieff on Ben 
Chonzie (the late Professor Balfour), 
Ben Lawers (Mr. J. Backhouse), Clova 
Mountains (Sir W. Hooker). Professor 
Balfour, Mr. Neill Fraser and myself 
failed to find it on Ben Lawers. 
It occurs in Iceland, Lapland, Nor- 
way, Sweden, Denmark, Russia, Nova- 
Zembla, Caucasus, the Crimea, Spain, 
Italy, France, Germany, Switzerland, 
Hungary, Siberia, Kamtschatka, United 
States, Canada, the Rocky Mountains 
and Arctic America, Japan, Siberia, 
Labrador, Greenland. 
No varieties are recorded. 
THE ALPINE WOODSIA. 
Woodsia hyperdorea. — R . Brown . 
Hairy, but not scaly. 
Equally rare and scarcely as large 
as Woodsia Uvensis, and with shorter 
pinnae ; growing in similar situations. 
Our British recorded localities are 
Snowdon (Mr. L. Clark) near Crieff on 
Ben Chonzie, Perthshire, Glen Isla For- 
Fig. 1. — Woodsia ilvensis. 
2. — Woodsia hyperborea. 
