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rounded-reniform involucres, and the veinlets run to the
notches between the teeth, not to the teeth themselves. The
A . emarginatum of Bory, from Mauritius, is now ascertained
to be a form of A . Capillus-Veneris. Hooker’s figure in
Species Filicum, though taken from a specimen in his herbarium,
marked “ Malacca, Griffith,” resembles no known A d-
ianhtm of either Malacca or Mauritius. It is on the same
sheet with one much more like A . Capillus-Veneris, which is
marked as coming from Delessert’s herbarium, and as collected
in the Mauritius. It is possible that the labels have
been interchanged, an accident which happens sometimes in
every herbarium. Keyserling conjectures that the specimen
figured came from California, by way of Delessert’s collection ;
and as it is exactly our plant, the conjecture is probably
correct. It is interesting to note that in Hooker’s herbarium
is a specimen from California, collected by Dr. Hillebrand,
marked by Sir W. J. Hooker’s own hand; — “ A d . Cap.-Ven.
— same form as A d . emarginatum, Bory in Hk. Sp. F il. t. 75.”
Plate xxxvm. — Fig. 1-3. Adiantum emarginatum. Fig. I is
a frond with unusually large pinnules, collected near Ukiah, California,
by Dr. Kellogg. Fig. 2 represents two sterile pinnules of a smaller
specimen. Fig. 3 is a spore, highly magnified.
P l a t e X X X V III. — F ig . 4 - 8 .
"VITTARIA L IN F A T A , S w a r t z .
R ib b o n -F em . F ille t -F e rn .
V i t t a r ia l i n e a t a : — Root-stock short, creeping, densely
covered with lanceolate-acuminate fuscous-brown scales ; fronds
clustered, almost sessile, pendent, very narrowly linear, not two
lines wide, but from one to three feet long, tapering to both
base and apex, smooth and rather fleshy in the living plant,
subcoriaceous and longitudinally furrowed when dry; veins
consisting of a midvein hidden in the frond, and two parallel
intramarginal fertile veins, connected with the midvein by very
short oblique distant veinlets; sori nearly as long as the frond,
sunken into deep intramarginal furrows; sporangia mixed with
abundant contorted ribbon-like filaments; spores smooth, ovoid-
reniform.
Vittaria lineata, S w a r t z , in Schraders Journal ( 1 8 0 0 ) ii., p- 7 2 :
Syn. Fil., p. 1 0 9 .— S c h k u h r , Kirypt. Gew., p. 9 3 , t. lo i , b .—
— W i l ld e n o w . Sp. PI, v., p. 4 0 4 . — P u r s h , FI. Am. Sept., ii.,
p. 6 6 9 .— F é e , 3me Mém., p. 1 7 .— E a t o n , in Chapman’s Flora,
p . 5 8 9 . — H o o k e r , Sp. F i l , v ., p. 18 0 . — G r i s e b a c h , F I Brit.
W. I. Islands, p. 6 7 1.— F o u r n i e r , Pi. Mex., Crypt., p. 1 1 4 .—
G a r b e r , in Botan. Gazette, iii., 10 , p. 83.-
Vittaria angustifrons, M ic h a u x , FI Bor.-Am., ii., p. 261.
Vittaria Schkuhrii, R a d d i , F i l Brasil, p . 5 1 .