Medium-sized, fronds thin, oblong-lanceolate, 2-3 pinnate or pinnatifid. On rocks and in moist woods. P. [198].
54. RUSTY WOODSIA
Woodsia Ilvensis
Small, more or less covered with rusty hairs, fronds lanceolate, once-pinnate, pinnæ pinnatifid. On exposed rocks. P. [200].
55. BLUNT-LOBED WOODSIA
Woodsia obtusa
Small, slightly downy, fronds broadly lanceolate, nearly twice-pinnate. On rocks. P. [202].
56. NORTHERN WOODSIA
Woodsia hyperborea