114 A C R O ST IC H UM F L A G E L L IF E R U M .
and glabrous ; the terminal liinnæ at least twelve inclies in
length, hecoming narrower towards the apex, near which it is
proliferous. F e rtile frond contracted and pinnate ; pinnæ
oblong-acuminate and petiolate, the terminal one narrow and
elongated.
L ateral, and adherent to a creeping rhizoma.
Sori amorphous.
Veins pinnate, th e venules being arcuately anastomosing.
L en g th of sterile frond from eighteen to th irty inches, of
fertile frond from twelve to eighteen inches; colour a dull
h e av y green.
L or a plant of this F e rn my thanks are due to Mr. Stewart,
late gardener at Sudbury P a rk ; and for fronds to M. Schott,
of the Inqierial Gardens, Schonbriinn; Mr. Gray, of St. Ihomas ,
E x e te r; and to Mr. G. Norman, of H u ll.
I t may be p rocured of Messrs. Sim, of F o o t’s Cray; J.
Henderson, of "Wentworth; Booth, of H am b u rg ; and Cooling,
of Derby.
T he illustration is from a frond sent h y Mr. Gray, of St.
Thomas’, E x e te r. The following engraving
diminished frc
a fertile frond, sent h y M. Schott.
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