AN ENUMERATION OF CULTIVATED FERNS. 101 
or internal and obscure ; venules arcuately or angularly ana- 
stomosing, producing two or more excurrent free veinlets. Re- 
ceptacles punctiform, terminal or medial on the free veinlets. 
Sori round, obliquely biserial or irregular, destitute of scales. 
* Fronds simple. 
1. C. ensifolium, J. Sm. Polypodium ensifolium, Willd. 
Marginaria ensifolia, Presl. Campy loneurum angus- 
tifolium, /3 taeniosuin, Moore . — Tropical America. 
2. C. angustifolium, Fee. Polypodium angustifolium, Bio. ; 
Radd. Fil. Bras. t. 24, /. 2. Marginaria angustifolia, 
Presl. Polypodium dimorphum, Link. Polypodium 
leucorhizon, Kit. Polypodium amphostemum, Kunze. 
— Tropical America. 
3. C. fasciale, Presl. Polypodium fasciale, Hunib. P. lapa- 
tliifolium, Radd. Fil. Bras. t. 24, /. 3. — Brazil and 
Venezuela. 
4. C. rigidum, J. Sm. Cat. Cult. Ferns (1857), p. 13. C. luci- 
dum, Moore. Polypodium nitidum, Hoolc. Fil. Exot. 
t. 12 ( excl . syn .).- — -Tropical America. 
5. C. repens, Presl. ; Hoolc. Gen. Fil. t. 71 A. Polypodium 
repens, Linn.; Plum. Fil. t. 134. C. caespitosum, 
Link ; J. Sm. Cat. (1857). Polypodium caespitosum, 
Link ; Metten. Fil. Hort. Lips. t. 24, /. 4, 5. — Tropical 
America. 
