Lockhartiane. N. O. Filices. 
TABS. DCLXXV, DCLXXVI. 
Hyroperris Brownt. J. Sm. 
Hypoderris Brownii. J. Sm. in Hook. Gen. Fil. Tab, 1. Hook. 
Sp. Fil. 1, p. 57. 
Has. St. Anne’s Valley, Trinidad, Mr. Lockhart. 
Caudex repens, setaceo-squamosus, crassitie penne ansering. — 
Stipes spithameeus et ultra, setosus. Frons spithamea ad pe- 
dalem, ovato-lanceolata, membranacea, supra basin contract®, 
sepius profunde triloba basi cordata, lobis lateralibus mul- 
toties minoribus, lanceolatis, acuminatis ; lobo medio, 8% 
terminali, maximo, ovato-acuminato, subsinuato, ubique 
integerrimo, Costa valida. Fene parallele, patentes, 
sinuose ; venulis reticulatis connexis, ultimis nonnunquam 
liberis. Sori globosi, venis primariis paralleli, ad angulas 
confluentes inserti.  Jnvolucrum inferum, subcyathiforme 
membranaceum , reticulatum, margine patente fimbriato, sub- 
ciliato, 
The essential character of this genus, established by Mr. 
Town, consists in the inferior involucre, like that of some 
code, Hat arising from anastomosing veins, as in the PAy- — 
regis group of Polypodium, and in the trae Aspidium of 
nite’ wee poe plant appears to be quite peculiar “6 
lave. have seen no specimens save from Mr. Lock- 
Fig. 1. Small portion of the frond with a sorus :—magnified. 
