CATALOGUE OE EERNS. 
31 
high, slender ; pinnse distant, spreading ; pinnules ovate, hastate* 
lobed, or trifoliate, plain, smooth, glaucous, or farinose. Veins 
forked, free. Sporangia large, globose, sessile, definite, in a 
short series on the upper portion of the venules, becoming late- 
rally confluent, forming a broad sub-intramarginal sorus. Indu- 
sium obsolete or very narrow. 
* Fronds smooth , glaucous. 
1. C. teraera, Fee. Nothobena tenera, Gill. ; Hook. Bot. Mag . 
t. 3055 5 Kunze, Fil. t. 22. /. 2.— Chib. 
** Fronds farinose. 
2. G. nivea, Desv. Pteris nivea, Lam.; Sw. hTothobena nivea, 
Desv. ; Kunze , Fil. t. 22. f. 1. Acrostichum albidulum, 
Sw. Syn . Fil. t. 1. f. 2. Nothobena incana, Presl , Bel. 
Hank. t. 1 .f. 2. — Tropical America. 
3. C. fiavens, Desv. Acrostichum flavens, Sw. Gymnogramme 
flavens, Kaulf. — Tropical America. 
49. PEXalj^ESA, Link. 
(Allosori sp., Fresl. Platylomse et Cassebeerse sp., J. Sm. Gen . 
Fil. Pteridis sp., Auct.) 
Vernation fasciculate, erect or decumbent, squamose. Fronds 
palmate, pinnate, or bi-tripinnate, 5 inches to 6 feet high ; pin- 
nules articulated to the rachis or to a short petiole. Veins 
forked ; venules free. Sp orangiferous receptacles terminal, gene- 
rally contiguous, forming a more or less broad, compound, conti- 
nuous marginal sorus, or rarely distant, and each receptacle 
forming definite round sori. Indusium linearly continuous, or 
subrotund and special to each receptacle. 
1. P. geraniifolia, Fee. Pteris geraniifolia, Badd. Fil. Bras. 
t. 67 ; Hook. Ic. PI. t. 915. — East Indies, Polynesia, Tro- 
pical America. 
2. P. intramargmalis, J. Sm. Pteris intramarginalis, Kaulf. ; 
Kunze, Analect. Pterid. t. 17. f. 1. Pteris fallax, Mart, 
et Gal. Fil. Mex. t. 14. f. 2. Cheilantlies intramargi- 
nalis, Hook. — Mexico. 
