S S 226 : CHARACTERS OP TRIBES AND GENERA. 
distinction being that in the first the sori are lateral, and 
in the latter terminal. 
Sp. C. semicordata (Sw.) (v v.) ; C. Presliana, J. Sm. 
(Lastrea Presliana, J. Sm., Ouming’s Enumeration, 1841), 
In the “ Species Filicum " the latter is made a synonym 
. of A. semicordatum. 
118.—NzPHnOLEPIS, Schott. (1884). 
Hook Sp. Fil. 
Vernation fasciculate, erect, stoloniferous. Fronds pin- 
nate, linear, 1 to 6 feet long; pinne numerous, oblong or 
linear lanceolate and faleate, entire, dentate, or deeply 
crenate, upper side of the base auriculated, sessile, articu- 
lated with.the rachis. Veins forked ; venules free, clavate, 
the lower exterior branches fertile. Indusium reniform, or 
in some nearly orbicular, sometimes equal and conniving 
with the soriferous crenule, forming a marginal bilabiate 
cyst. Sori transverse uniserial. 
Type. Aspidiwm exaltatum, Swartz. 
Ilust. Schott. Gen, Fil., t. 3; Hook. and Bauer, Gen. Fil., 
t. 35, 48 A; Moore Ind: Fil., p. 72, B; J. Sm. Ferns, 
Brit. and For., fig. 79; Hook. Syn. Fil., t. 5, fig. 45. 
Oss.—This is a truly natural genus, very generally 
distributed over the tropics of both hemispheres. The 
great uniformity in general character pervading the genus 
has, however, not prevented authors creating about forty 
` Species; and Fée has even gone so far as to divide them 
into two distinct genera, which he places far apart in his 
system, his character in the indusium being reniform in ` ` 
one and nearly orbicular in the other; but these characters 
are variable even in specimens of the same suite. On. 
reviewing the whole, the genus appears to me to resolve 
