British Guiana, Schomburgk, n. 378. 
BE. VOL. r. 
FLORA OF SOUTH AMERICA. 201 
751. T. floribundum, Humb.— Willd. l. c. p. 505. British 
Guiana, Schomburgk, n. 299. 
752. T. Kraussii. Hook. et Grev. Ic. fil. t. 149. British 
Guiana, Schomburgk, n. 440. 
753. T. coriaceum, Kunze Analect. t. 29. f. 1. British 
Guiana, Schomburgk. 
154. T. Ankersii, Hook. et Grev. ic. fil. t. 201. Rio Pada- 
wire, British Guiana, Schomburgk. 
755. T. tenerum? Spreng. Syst. 4. p. 129. Sierra Paraima, 
British Guiana, Schomburgk.—It is with some doubts that I 
refer this to the 7. tenerum of Sprengel, it is rather more finely 
divided than in specimens which I consider to be that species. 
It is also closely allied to T. angustatum of Hook. et Grev. 
756. Hymenophyllum polyanthos, Sw. Willd. l. c. p. 530. 
Hook. et Grev. ic. fil. t. 128. British Guiana, Schomburgk, n. 
509.—This appears to be a very generally diffused species, I 
have received it from several of the West-Indian islands, 
Brazil and the Philippines. 
757. Sitolobium adiantoides, J. Sm. in Journ. of Bot. vol. 5. 
Dicksonia adiantoides, Humb.— Willd. l. c. p. 488. French 
Guiana, Herb. Mus. Paris, n. 289. 
Tribe CYATHES. J. Sm. 
758. Alsophila armata, Mart. Polypodium armatum, Radd. 
Bras. fil. t. 42. Spreng. Syst. 4. p. 61. French Guiana, Herb. 
Mus. Paris, n. 275. 
. 759. Alsophile sp. French Guiana, Herb. Mus. Paris, n. 
276. 
760. Alsophile sp. British Guiana, Schomburgk, n. 304. 
761. Amphidesmium rostratum, J. Sm. l. c. Polypodium 
 Tostratum, Humb. Willd. l. c. p. 193. P. Parkeri, Hook. et 
: Grev, ic. fil. t. 232. Metaxya rostrata, Prel. Pterid. p. 59. 
; British Guiana, Schomburgk, n. 18. 
GLEICHENIACEJX. R. Br. 
762. Mertensia glaucescens. Humb. — Willd. l. c. p. (io 
Q 
