234 BOTANY OF THE VOYAGE OF H.M.S. HERALD. 
1085. Adiantum dolahriforme, Hook., Ic. PI. t. 191, Sp. Fil. vol. ii. p. 13. Panama. 
Brazil (Garduer). 
1806. Adiantum incisum, Presl, Hook. Sp. Fil. vol. ii. p. 16. Woods near Panama. 
Brazil (Miers), Island of Pmia (Barclay). 
+ 
1087. Adiantum villomm, Linn., Hook. 1. c. p. 18. "^'ith the preceding species. 
Island of Trinidad ( Aldrldge) , Tropical America (Cuming) . 
1088. Adiantum hirtum, Kaulf., Hook. 1. c. p. 20. Village of San Juan. 
Britisli Guiana (Scliomburgk) . 
1089. Adiantum i>rionop%?/Mm, H. et B., Hook. 1. c. p. 21. Southern Darien. 
Village of Esmeraldas, Ecuador (Seemann), and Islands of Tumaco (Barclay), Jamaica (Wiles), Mar- 
tinique (Sieber), and Trinidad (Aldridge). 
1090. Adiantum iriangulatum, Kaulf., Hook. 1. c. p. 26. Woods near Panama, and Island of 
Taboga. 
Jamaica (Wilson), Trinidad (Aldridge), British Guiana (Schomburgk) . 
1091. Adiantum trapeziforme, Linn., Hook. 1. c. p. 33. Woods between Panama and Cruces. 
Jamaica (Heward, AViles, Purdie).— v. v. Hort. Kew. 
Veragu; 
Tepic (Barclay). — ^v. v. Hort. Kew. 
1093. Adiantum tenerum, Sw., Hook. 1. c. p. 45. Volcano of Chiriqui, Veragnas. 
Jamaica and West Indies generally. — v. v. Hort. Kew. 
" I have never observed any epiphytical species of Adiantum, though several species growing on rocks 
and old walla ; the genua appears to be strictly terrestrial."— i?. S. 
1094. LiTOBROCHiA elata, J. Sm.-P^em elata, Agardh, Mon. Pterid. p. 63. Woods near 
Panama. 
Caraccas (Otto), Brazil (A. Cunningham, fliers). 
1095. LiTOBROcniAiwopiK^wa, J. ^m.—Pterispropinqua, Agardh, 1. c. p. 65. Southern Darien. 
Jamaica (Wiles), Esmeraldas, Ecuador (Seemann). 
1096. PTERis^ww^en^, AVilld., 1. c. p. 387, Agardh, 1. e. p. 27. Panama. 
Trinidad (Aldridge) .—v. v. Hort. Kew. 
1097. Ptebis caudata, Linn., Agardh, 1. c. p. 48.— Nomen. vemacul. " Negrajorra." Volcano 
of Chiriqni, Veraguas. 
V. v. in Hort. Kew. 
This species, with P. aquiUna, and a number of similar forms, described by authors as distinct species, 
constitute a very natural and characteristic group of Ferns widely spread over the earth, occupying exten- 
sive tracts within the tropics, and extending to high latitudes of the temperate zones. The extreme forms 
■of this group may readily be designated as distinct species, yet, on looking at the intermediate states from 
