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P l a t e XLVI.
A S P ID IU M R IGIDUM , v a r . A RGU TUM , D. C. E a t o n .
Rigid Wood-Fern.
A s p i d i u m r i g i d u m , var. a r g u t u m : — Root-stock stout,
rather short, ascending, very chaffy; stalks a span to a foot
long, erect, rigid, chaffy with ample bright-ferruginous pointed
scales; fronds in a crown, half-evergreen, firm-membranaceous
or sub-coriaceous, smooth and green above, paler and more or
less glandular beneath, one to two feet long, ovate-lanceolate
or triangular-lanceolate, usually fully bipinnate ; pinnæ broadly
oblong-lanceolate, the lowest ones widest but scarcely shorter
than the middle ones; pinnules oblong, pinnately incised or
doubly serrate with spinulose teeth, conspicuously veiny ; veins
much branched; sori large, nearer the midrib than the margin;
indusia firm, convex, orbicular, with a very narrow sinus,
the edge bearing short-stalked glands.
Aspidium rigidum, var. argutum, E a to n , Ferns of the South-West,
P- 3 3 3 -
Aspidium argutum, K a u l fu s s , Enum. Fil., p. 242. — H o o k e r & A knott ,
Bot. Beechey’s Voyage, p. 16 2 .— T o r r e y , Pacif. R, Rep,, iv.,
p. 160; vii., p. 21.
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