lanceolate, acuminate, caudate, and subfalcate. E ig h t to ten
p airs, with an ultimate one; these are from eight to ten inches
long, and about an inch and a q u a rte r wide.
Veins external, prominent, widely apart, especially the basal
ones, compound anastomosing, forming hexagonal areoles.
Sori transversely unise rial, from twelve to eighteen pairs on
each segment; circular.
Sporangiferous receptacles deeply immersed, forming a row
of elevated, truncate, papilliform tubercles on th e u p p e r side
of the laciniæ.
L en g th of frond from two feet to two and a half.
My thanks are due to Mr. J . Smith, Curator of the Royal
Gardens, Kew, for a frond of this species.
I t is not as yet to be p ro cu red from any of the Nurserymen.
The illustration is from Mr. Smith’s frond.
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