AN ENUMERATION OF CULTIVATED EERN8. 



101 



or internal and obscure ; venules areuately or angularly ana- 

 stomosing, producing two or more excurrent free veinlets. Be- 



Genus 27.— Poition of mature fron3, under side. No. 6. 



ceptacles punctiform, terminal or medial on the free veinlets. 

 Sori round, obliquely Mserial or irregular, destitute of scales. 



* Fronds simple. 



1. C. ensifolium, /. 8m. Polypodium ensifolium, Willd. 



Marginaria ensifolia, Presl. Campyloneurum angus- 

 tifolium, /3 tasniosum, Moore. — Tropical America. 



2. C. angustifolium, Fee. Polypodium angustifolium, Sw. ; 



Itadd. Fll. Bfas. t. 24, /. 2. Marginaria angustifolia, 

 Presl. Polypodium dimorphum, Link. Polypodium 

 leucorhizon, Kit. Polypodium amphostemum, Kunze. 

 — Tropical America. 



3. C. fasciale, Presl. Polypodium fasciale, Humb. P. lapa- 



tliifolium, Badd. Fit Bras. t. 24, /. 3. — Brazil and 

 Venezuela. 



4. C. rigidum, /. 8m. Oat. Cult. Ferns (1857), p. 13. 0. loci- 



dum, Moore. Polypodium nitidum, Hooh. Fil. Exol. 

 1. 12 {excl. syn). — Tropical America. 



5. O. repens, Presl. ; Hook. Gen. Fil. t. 71 A. Polypodium 



repens, Linn.; Plum. Fil. t. 134. 0. csespitosum, 

 Link ; J. 8m. Cat. (1857). Polypodium csespitosum, 

 Link ; Metten. 'Fil. Hort. Lips. t. 24, /. 4, 5. — Tropical 

 America. 



