274 THE VOYAGE OF H.M.S. CHALLENGER, 



Polypodium (Grammitis) australe, Mett. 



Polypodium {Grammitis) australe, Mett., Polypod., p. 36 ; Hook., Sp. Fil., iv. p. 167 ; Hook, and Bak., 



Synop. Fil., p. 322. 

 Grammitis magellanica, Desv., Journ. Bot., iii. p. 275, t. 10, fig. 2; Fournier in Comptes rendus. 

 1875, lxxxi. p. 1140. 



Amsterdam Island. De VIsle. 



Generally diffused in the south temperate zone. 



Polypodium serrulatum, Mett. 



Polypodium serrulatum, Mett., Polypod., p. 32; Hook., Sp. Fil., iv. p. 174; Hook, and Bak., Synop. 



Fil., p. 323 ; Bak., Fl. Maurit., p. 504. 

 Micropteris serrulata, et Micropteris orientalis, Desv. in Mem. Soe. Linn. Par., vi. p. 217. 

 Xiphopteris serrulata, Kaulf., Enuni. Fil, p. 85 ; Hook., Garden Ferns, t. 44. 

 Xiphopteris orientalis, Fournier in Comptes rendus, 1875, lxxxi. p. 1140. 



Amsterdam Island. De VIsle. 



Generally diffused in the tropics, and extending into subtropical regions. 



This is another fern of which we have seen no specimen from Amsterdam Island, and of 

 which there is a specimen in Kew Herbarium from Bourbon, collected by De l'lsle ; hence 

 we think it may have got into Fournier' s list by mistake. The distribution of the species. 

 as illustrated in the rich Herbarium at Kew, supports this view, inasmuch as it is not found 

 in extratropical South Africa ; and we have seen no specimens of it from extratropical 

 America, unless we include Juan Fernandez. On the other hand, the extraordinary 

 range of Phylica nitida, as set forth in our enumeration of the plants of the Tristan da 

 Cunha group, indicates an ancient connection between the vegetation of the Mascarene 

 Islands and that of these southern islands. 



Acrostichum succissefolium, Thouars. 



Acrostichum succiscefolium, Thouars, Esquisse Fl. Trist., p. 30; Hook, and Bak., Synop. FiL, p. 408 : 

 Fournier in Comptes vendus, 1875, lxxxi. p. 1140. 



Amsterdam Island. — Abundant at 600 feet — De VIsle. 

 Previously only known from the Tristan da Cunha group. 



Monogramme grarninea, Schkuhr. 



Monogramme graminea, Schkuhr., Krypt. Gew., p. 82; Hook, and Bak., Synop. Fil., p. 375. 

 Monogramme linearis, Kaulf., Enum. FiL, p. 196; Fournier in Comptes rendus, 1S75, lxxxi. p. 1140 : 

 Hook., Sp. FiL, v. p. 122. 



Amsterdam Island. De VIsle. 



Cape of Good Hope, and Mascarene Islands. 



