22 
CATALOGUE OE EERNS. 
slit, the margins of which are indusiform. Sori marginal or 
slightly intramarginal, linear, continuous. 
1. V. line at a,, 8m. ; Schlc. Fil. t. 101 b. V. graminifolia, 
Kaulf — Tropical America. 
2. V. zosteraefolia, Willd. ; Fee , Mem. Fil. t. 2.f. g. — Mauri- 
tius. 
31. ANTEOPHYUM, Kaulf. 
Vernation uniserial, contiguous ; sarmentum short (undefined) 
squamose. Fronds simple, linear-lanceolate or oblong-elliptical, 
smooth, coriaceous, with or without a defined midrib. Veins 
uniform, reticulated, more or less linearly sporangiferous. Re- 
ceptacles immersed, rarely superficial, forming linear, continuous 
or interrupted, reticulated sori. 
1. A. laraceolatum, Kaulf. Hemionitis lanceolata, Linn.; 
Plum. Fil. t. 127. f c; Schlc. Fil. t. 6. — West Indies. 
2. A. cayennense, Spreng. Hemionitis cayennensis, JDesv.; 
Presl. — Tropical America. 
32. CEEATOPTEEIS, Brongn. 
(Parkeria, Hook.) 
Vernation fasciculate, erect (annual). Fronds fragile : the fer- 
tile decompound ; segments forked, linear ; margins revolute, 
membranaceous, conniving, indusiform. Veins transversely 
elongated, distantly anastomosing. Sporangia occupying the 
transverse venules, superficial, large, definitely disposed in a sim- 
ple series, constituting two linear, subparallel sori. 
1. C. thalictroid.es, Brongn. ; Hoolc. Gen. Fil. t. 12. Ellobo- 
carpus oleraceus, Kaulf — Tropics. 
Tribe II. ACHOSTICHEiE, J. Sm. 
Fertile fronds or segments always more or less contracted ; 
the under side (or rarely both sides) densely sporangiferous. 
Sori undefined (amorphous). 
