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Height. From two to three inches. 
Colour. Dull green. 
Habitats. Mountainous and rocky situations in 
North Wales and Scotland. An extremely 
rare fern. 
GROUP I; GENUS XVI; SPECIES II. 
WOODSIA ILVENSIS. {Oblong Woodsia.) 
Plate XIX. 
Fronds. Lanceolate, pinnate. Pinnules obtuse, ob¬ 
long, opposite or alternate, pinnatifid towards 
the base and lobed towards the apex. Lobes 
very slightly serrated. The under surface of 
the frond is woolly in appearance, being 
thickly covered with glossy hairs and pointed 
scales among which the filaments of the 
indusium are difficult to distinguish, and the 
sori themselves almost concealed. Stipes 
short, scaly, and jointed near the base, at 
which point the old fronds fall off. 
Growth. In tufts. Erect and rigid. 
Height. From two to four inches. 
Colour. Dull green. 
Habitats. Crevices in damp rocks at a considerable 
elevation in North Wales, Durham and Scot¬ 
land. An extremely rare fern 
