AN ENUMERATION OF CULTIVATED FERNS. 187 
stramineous; ultimate pinnules and lobes oblong-elliptical, 
cuneiform, marginate, usually oblique. Veins pinnately forked, 
radiating ; venules direct, apices of the sterile clavate, free, the 
Genus 94.— Portion of frond, natural size; two ditto, enlarged. No. 1. 
fertile 2-4 converging and transversely combined by a thick 
impressed, sporangiferous marginal receptacle. Son oblong, 
rarely two on each lobe. Indusium formed of the reflexed 
margin, thick, coriaceous. 
1. O. pallens, J. Sm. Gen. Fil. (1841) ; Hook. Sp. Fil. 2, t. 77 ; 
Hook, et Bauer. Gen. Fil. t. 106 A. Adiantum 
pallens, Sw. — Mauritius. 
95. ONYCHIUM, Kaulf. 
Vernation fasciculate and decumbent, or distant and sarmen- 
tose. Fronds decompound multifid, 1-3 feet high, smooth ; 
sterile segments cuneiform. Veins forked, free, their apices 
clavate ; fertile segments linear, apiculate, veins simple, short. 
