66 THE VOYAGE OF H.M.S. CHALLENGER. 



have seen, is a small specimen of Gleichenia revoluta, H. B. K., collected by Mr Moseley — 

 a species so distinct from the present that it is very unlikely Philippi can have been 

 mistaken. It is remarkable as being the only vascular plant recorded from both Juan 

 Fernandez and the Falklands. 



Gleichenia revoluta, H. B. K. 



Gleichenia revoluta, H. B. K., Nov. Gen. et Sp., i. p. 29 ; Hook., Sp. FiL, i. p. 7, t. 7. 

 Gleichenia [Mertensia) revoluta, Hook, and Bak., Synopsis FiL, p. 13. 

 Mertensia pruinosa, Mart., Ic. Crypt. Bras., p. 109. 



Juan Fernandez. Moseley; Downton. 



A common species in South America, ranging from New Grenada and Brazil to Chili 

 and Chiloe. 



POLYPODIACE.E. 

 Thyrsopteris elegans, Kuuze. 



Thyrsopteris elegans, Kunze in Linnaea, ix. p. 506, et Farrnkrauter, p. 3, t. 1 ; Hook., Sp. FiL, i. p. 



65; Hook, and Bak., Synopsis FiL, p. 16, t. 1, fig. 3 ; Gay, Fl. Chil., vi. p. 526. 

 Panicularia bcrteri, Colla in Mem. Accad. Sc. Torino, xxxix. p. 35, t. 64. 



Juan Fernandez. — Endemic. Moist shady woods in the higher mountains — Bertero ; 

 Reed; Moseley; Downton. 



It is noteworthy that this very striking fern was not collected by any of the earlier 

 travellers, whose collections are at Kew, except Bertero. A living plant of it exists at Kew. 



Alsophila pruinata, Kaulf. 



Alsophila pruinata, Kaulf.; Hook., Sp. FiL, i. p. 47; Mett., FiL Hort. Bot. Lips., p. 110; Hook, and 



Bak., Synopsis FiL, p. 38; Gay, FL Chil., vi. p. 525. 

 Polypodium pruinatum, Swartz, Fl. IiuL Oca, iii. p. 1682. 

 Polypodium griseum, Schkuhr, FiL, t. 25. 



Lqphosoria affinis et Lophosoria discolor, Presl, die Gefiissbiindel im Stipes der Farm, p. 37. 

 Trichosorus glaucescens etfrigidtts, Licbm., fide Hook. MSS. 

 Oyathea discolor, Bory in Duperr. Voyage, Bot. Crypt., p. 281. 



Juan Fernandez. — Woods in the hills and mountains — Bertero ; Scouler ; Ph ilippi ,- 

 Moseley ; Downton. 



A very common American fern, ranging from Mexico and the West Indies to Chili 

 and South Brazil. In Juan Fernandez, according to Bertero, the stem is from three to 



eifrht feet Inch. 



& 



Dicksonia berteroana, Hook. 



Dicksonia berteroana, Hook., Sp. FiL, i. p. 67, t. 23; Gay, Fl. Chil., vi.'p. 522; Hook, and Bak., 



Synopsis FiL, p. 51. 

 Davallia berteroana, Colla in Mem. Accad. Sc. Torino, xxxix. p. 37, t. 65. 

 Balantium berteroanum, Kunze, Anal. Pteridogr., p. 40. 



