Plate LXIX.
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A S P ID I UM BO O T T H 0 ,'u uker m a g. .
F E R N S O F NORTH A M E R IC A . 175
P l a t e LX IX .
A SP ID IUM BOOTTII, T u ck e rm an .
Boott’s Wood-Fern.
Aspidium B o o t t i i ; — Root-stock stout, creeping or assurgent,
covered with persistent up-curved stalk-bases ; stalks
about a foot long, more or less chaffy with large thin pale-
brown scales; fronds one to two and a half feet long, firmly
membranaceous, oblong-lanceolate or elongated-lanceolate in
outline, somewhat narrowed towards the base, nearly twice
pinnate, the sterile ones shorter and slightly less compound
than the fertile, pinnæ numerous, pointed, the lower ones
triangular-lanceolate, broadest at the base, the upper ones lanceolate
from a broad base; pinnules many pairs, oblong-ovate,
mostly constricted at the base, and confluent on the narrowly
winged secondary rachis, sharply serrate with spinulose teeth,
the lower ones cut-lobed or pinnatifid; sori midway between
the midvein and the margin, medial or sub-apical on the lowest
superior branch of each vein; indusium round-reniform,
minutely glandular.
Aspidium Boottii, T u c k e rm a k , in Hovey’s Magazine of Horticulture
and Botany, ix. ( 1 8 4 3 ) , p. 145. — D a v e k po r t , in Amer. Naturalist,
xii., p. 7 14 ; Catal., p. 29.—W il l ia m so n , Fcrn-Etchings,
t. xxxix.
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