40 BOTANICAL RESULTS OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 



the fact that the veins of the fronds do not anastomose at all (vide Hook, and Baker, Syn. 

 Fil., p. 172). . The Gough Island plants belong to the same variety. 



Distribution. - - Tristan da Cunha, Nightingale and Inaccessible Islands ; also 

 tropical and temperate South America, South Africa to West Tropical Africa, and from 

 the Himalayas to New Zealand and Polynesia. 



LOMARIA ALPINA, Spreng. Syst. Veg., iv. p. 62; Hook. f. Fl. Antarct., ii. p. 393, 

 t. 150; Hook, and Baker, Syn. Fil., p. 178; Hemsl. Chall. Sot., i. u. p. 164. 

 L. antarctica, Carmich. in Trans. Linn. Soc. Lond., xii. (1818), p. 513. 



Acrostichum polytrichoides, Thou. Esq. Fl. Trist., p. 32, t. 2 (A. polypodoides). 



Polypodium Pennamarina, Poir. in Lam. Encyc., v. p. 520. 



Not uncommon in the glen. 



Distribution. Tristan da Cunha and South America, including the Falkland Islands 

 and Staten Island, Australia, New Zealand, Marion Island, Kerguelen, the Crozets, 

 St Paul and Amsterdam Islands. 



LOMARIA BORYANA, Willd. Sp. PL, v. p. 292 ; Hook, and Baker, Syn. Fil., p. 180 ; 

 Hemsl. Chall. Bot., i. n. p. 163. L. magellanica, Desv. in Mag. Nat. Berl. (1811), 

 p. 330 ; Hook.f. Fl. Antarct., ii. p. 393. L. palmseformis, Desv. in Mem. Soc. Linn. Par., 

 vi. (1827), p. 290. L. robusta, Carmich. in Trans. Linn. Soc. Lond., xii. (1818), p. 512. 



Pteris palmseformis, Thou. Esq. Fl. Trist., p. 30. 



Many specimens of this fern were found growing in marshy ground in the sheltered 

 glen. 



It reaches a height of from 2 to 3 feet, but the stems almost always grow in a 

 procumbent position. In diameter the trunk varies from 2 inches to as much as 5 or 6. 



The Gough Island plant belongs to the same variety as the Tristan da Cunha one, 

 which Carmichael described as a new species (Lomaria robusta, Carmich.). It, however, 

 only differs in having the usually naked rachis more or less densely scaly throughout, 

 and is hardly entitled to specific rank. It must be very plentiful farther inland, as the 

 beach is thickly strewn with waterworn stems evidently carried down by the stream 

 from the interior and washed up again by the sea. 



Distribution. Tristan da Cunha ; Tropical America to Tierra del Fuego and the 

 Falkland Islands ; South Africa, Mauritius, Reunion, and Madagascar. 



ASPLENIUM OBTUSATUM, Forst. f. Prod., p. 80 ; Hook, and Baker, Syn. Fil., p. 207. 

 A. obliquum, Forst. f. loc. cit. ; Carmich. in Trans. Linn. Soc. Lond., xii. (1818), 

 p. 512. A. crassum, Thou. Esq. Fl. Trist., p. 33. 



Common in the glen. 



This species varies a great deal, and the Gough Island plants, while agreeing with 

 some of Moseley's plants from the Tristan da Cunha Islands, are considerably smaller 

 than Carmichael's specimens from the same place. 



Distribution. Tristan da Cunha, Inaccessible, and Nightingale Islands. Widely 

 distributed elsewhere. 



