CHARACTERS OF TRIBES AND GENERA. C» 
orientalis. With regard to the two first, herbarium speci- 
mens lead to the inference that they only represent one 
species, nevertheless, cultivated plants are readily recog- 
nised as being distinct. The Indian species differs in the 
fertile pinne being less involute and more flat than in the 
preceding. 
Although the species of Struthiopteris are perfectly dis. 
tinct in mode of growth and venation from Onoclea sensibilis, 
nevertheless they are in “Species Filicum" placed under 
the latter genus, and S. pennsylvanica is described as 
having a special indusium to each sorus, but which I have 
failed to discover. 
Sp. S. germanica, Willd. (v v.) ; S. pennsylvanica, Willd. 
(v v.) ; S. orientalis (Hook. 2nd. Cent. Ferns, t. 4). 
Sect, 7.—P HEGOPTEREX. 
Fertile pinne plane. Sori punctiform, rarely oblong 
linear. 
122,—Leproaramma, J. Sm. (1841). 
Gymnogramma, sp. Sw.; Hook. Sp. FW. 
Vernation fasciculate, erect, acaulose, or decumbent. 
Fronds bipinnatifid, 1 to 3 feet high. Veins of lacinæ 
costeform, pinnate ; venules free, a portion of their length 
sporangiferous, forming oblong or linear sori, 
Type. Polypodiwm tottum, Willd. 
Illust. Hook. and Bauer, Gen. Fil, t. 72; Moore Ind. 
Fil, p. 49 A, fig. 5; J. Sm. Ferns, Brit. and For., 
fig. 49. 
Oss.—This genus agrees in habit and venation with the ` ` 
bipinnatifid species of .Phegopteris, differing only in the — 
receptacles being elongated on the venules, thus con- ` ` 
