178 CHARACTERS OF TRIBES AND GENERA, 
Sp. P. linearis, Pr.; P. graminifolia, Pr. (Tænitis grami- 
nifolia, Hook. Exot. Fil, t. 77); P. seminuda, J. Sm. 
(Grammitis seminuda, Willd.; P. pumila, Pr.) ; P. farcata, 
J. Sm. (Grammitis, Sw.; Monogramma furcata, Desv. ; 
Cochlidium graminoides, Kaulf., Schott. Gen. Fil., t. 19). 
Small grass-like Ferns, growing in tufts; natives of 
ihe West Indies and Tropical America. 
86.—Hecisropreris, J. Sm. (1842). 
Gymnogramma sp., Hook, Sp. Fil. 
Vernation sarmentose, slender, Squamose, producing the 
fronds in fascicles. Fronds simple, linear, cuneiform, forked 
or more divided (palmoid), half an inch to 2 inches high, 
plane, Veins simply or flabellately forked, radiating from 
an evanescent costa; venules terminating in the lacins, 
sporangiferous nearly their whole length, forming linear, 
simple or forked sori. 
Type. Gymnogramma pumila, Spreng. 
Illust. Fée, Gen Fil, t. 16 B.; Hook., Secd. Cent. of 
Ferns, t. 8. 
Ozs.—This small Fern was originally described by 
Sprengel as a species of G ymnogramma; but as it did not 
appear to me to form any natural alliance with any of the 
groups of species of that genus, I, therefore, in the Journal 
of Botany for 1842, deemed it best to characterise it as a : 
distinct genus. The fronds in some states being simple, : 
aud bearing only one sorus, seems to indicate its relation- e 
ship with Monogramma and Pleurogramma. 
.Sp. H. pumila, J. Sm. (Gymnogramma, Spreng., Kze. 
Analec., t. 8, f. 1). 
SC Indies, Central America, Guiana, Brazil. 
