629 
FILICES. (FERNS.) 
long), 2-pinnate; the pinnae lance-oblong, pointed, horizontal (1'-2' 
long) ; the rarhis often bearing bulblets underneath, icingless; pinnules 
crowded, oblong, obtuse, toothed or pinnatifid. (Aspidium, Swartz. 
A. atom&rium, Muhl.!) — Shaded, moist rocks, common. July. 
2. C. fra gills, Bernb. Frond oblong-lanceolate (4'-8' long, 
besides the stalk which is fully as long), 2-3-pinnate; the pinnae and 
pinnules ovate or lanceolate in outline, irregularly pinnatifid or cut¬ 
toothed, mostly acute, decurrent on the margined or winged rachis. _ 
Var. dentAta, Hook., is narrower and less divided, barely 2-pinnatc, 
with ovate obtuse and bluntly toothed pinnules. (Asp. tenue, Swartz.) 
— Shaded cliffs, common : very variable. July. 
13. WOODSIA, R. Brown. Woodsia. 
Fruit-dots globular, borne on the back of simply-forked free 
veins ; the thin indusium attached by its base all around the re¬ 
ceptacle, open or early bursting through at the top or centre, the 
orifice or edge irregular or jagged, and usually cut-fringed with 
long hairs which involve the sporangia.—Small and tufted pin- 
nately-divided Ferns. (Dedicated to Joseph Woods , an English 
botanist.) 
§ 1. Hypopeltis, Torr. — Indusium early open at the top, soon spread¬ 
ing , larger than the fruit-dot and as if placed under it, jagged-lobed, 
naked. 
1. W. obtiisa, Torr. Frond broadly-lanceolate, minutely 
glandular-hairy (6'-12' high), pinnate ; the pinnae rather remote, tri¬ 
angular-ovate or oblong (V or more long), bluntish, pinnately parted ; 
pinnules oblong, very obtuse, crenately pinnatifid-toothed, with a sin¬ 
gle smooth fruit-dot on each rounded minutely-toothed lobe near the 
sinus; stalk and rachis a little chaffy. (W. Perriniana, Hook, 
Grev. Aspidium obtusum, Willd.) —Rocky banks and cliffs, com¬ 
mon, especially westward. July. 
§ 2. Woodsia proper. — Indusium minute , open and fattened from an 
early stage and concealed under the fruit-dot, except its marginal 
fringe . 
2. w. Ilvcnsis, R. Brown. Frond oblong-lanceolate (2 '-4' 
long by 1' wide), smoothish and green above, thickly clothed underneath 
as well as the stalk with rusty bristle-like chaff, pinnate; the pinn® 
crowded, oblong, obtuse, sessile, pinnately parted, the numerous crowd¬ 
ed pinnules oblong, obtuse, obscurely crenate, almost coriaceous, the 
fruit-dots near the margin, somewhat confluent when old. (Nephro- 
dium rufidulum, Michx.) — Exposed rocks, frequent. June. 
3. w. glalH lIa. R. Brown. Smooth and naked throughout; 
frond linear (2'-5' high), pinnate; pinna rather remote towards the 
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