TAB. CXXVII. 
HYMENOPHYLLUM ABIETINUM. 
FILICES.—GrnzaTz. Br.  PorvPopnriaAczz. Kaulf.  Firicrs vere. Willd. 
Gzw. CHang. HYMEN OPHYLLUM, Sm. Sori marginales. Capsule sessiles receptaculo 
communi cylindraceo insertze, intra Znvolucrum bivalve, textura frondis, valvis planis, exte- 
rius liberis. Zr. 
HvMENoPHYLLUM aietinum ; fronde oblongo-lanceolata pinnata, pinnis bipinnatifidis, laciniis line- 
aribus glabris integerrimis, apicibus retusis, involucris orbiculari-cordatis bipartitis integris, 
disco convexo, margine lato plano. 
Has. In declivitate occidentali montis Pichincha, Andium Peruvianorum, ad truncos arborum 
locis umbrosis. |.D. Prof. Gul. Jameson. 
Caudex non visus. 
Spes duas vel tres uncias longus, gracilis, teres, nudus. 
Frons spithamzea, et ultra, rigidiuscula, circumscriptione, oblongo-lanceolata, pinnata, pinnis numerosis lanceolatis, 
bipinnatifidis, laciniis linearibus, glabris, minute reticulatis, integerrimis, apicibus plerumque retusis, fertilibus 
sub soros contractis. 
Sori terminales in laciniis brevibus segmentorum inferiorum pinnarum. 
Involucrum orbiculari-cordatum, textura frondis, ad basin fere in dua labia integra fissum, disco convexo, margine 
. lato plano. 
Rieceptaculum parvum, omnino inclusum. 
Capsule peltatee, annulo integro cinctze. 
Semina globosa, subangulata, fusca. 
Fig.1. Portio pinne cum soro. f.2. Involucrum. f. 3. Capsula. f.4. Semina:—magn. auct. 
Allied as this species is to several of the genus, we cannot but consider it abundantly distinct 
from all. It is of rather a rigid texture, the pinnz are numerous, and twice or thrice divided in a 
pinnatifid manner. "The most striking character is, however, in the shape of the involucrum, which 
is convex only in the centre, where it forms a kind of cell for the capsules, while the circumference 
is a broad and flat margin. 
