CATALOGUE OF FERNS. 
53 
76. CYCIs ODIUM, Presl. 
(Aspidii sp., Kaulf.) 
Vernation fasciculate, subdecumbent. Fronds pinnate, 2-3 
feet high ; sterile pinnae broad- elliptical ; veins pinnately forked ; 
venules acutely anastomosing, producing from their angular junc- 
tions an excurrent, free or anastomosing veinlet ; fertile pinnae 
contracted, linear-lanceolate ; veins uniform, reticulated. Spo- 
rangiferous receptacles medial. JSori round, confluent, occupying 
the whole under surface. Indusium orbicular. 
1. C. confer turn, Presl. Aspidium confertum, Kaulf. ; Hoolc. 
et Girev. Ic. Fil. t. 121 ; HooJc. Gen. Fit. t. 49 B. — 
Guiana. 
77. CYRTOMIUM, Presl. 
(Phanerophlebia, Presl.) 
Vernation fasciculate, erect. Fronds 1-3 feet high, pinnate, 
pinnae broad elliptical-lanceolate, entire or auriculate at the base. 
Veins two or three times forked, or pinnate ; venules alternate, 
the lower exterior branch free, the others acutely anastomosing, 
producing from their junctions free or anastomosing veinlets, 
sporangiferous on or below their apices or points of junction. 
Sort round, transversely uniserial, or numerous and oblique- serial. 
Indusium orbicular. 
1. C. falcatum, Presl. Polypodium falcatum, Linn. ,* Thunb. 
FI. Jap. t. 35. Aspidium falcatum, Lang, et Fisch. t. 15. 
• — Japan, China. 
78. PADYENIA, HooJc. 
Vernation fasciculate, erect, corm undefined. Fronds simple 
entire, 5-6 inches long ; the sterile lanceolate, attenuated and 
proliferous at the apex ; the fertile linear, ligulate, obtuse, erect. 
Veins forked ; venules acutely anastomosing ; the lower exterior 
venule of each fascicle free, and sporangiferous on its apex. Sori 
round, transversely uniserial. Indusium reniform, sub-oblong. 
