ASPIDIUM BOOTTII, Tuckerman. 
Boott’s Wood-Fern, 
Aspidium Boottii : — Root-stock stout, creeping or as- 
surgent, 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, pinnae numerous, pointed, the lower ones 
triangular-lanceolate, broadest at the base, the upper ones lan- 
ceolate 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 low- 
est superior branch of each vein; indusium round-reniform, 
minutely glandular. 
Aspidium Boottii, Tuckerman, in Hovey’s Magazine of Horticulture 
and Botany, ix. (1843), p. 145. — Davenport, in Anier. Nat- 
uralist, xii., p. 714; Catal., p. 29. — Williamson, Fern-Etchings, 
t. XXXIX. 
