THE BOTANY OF GOUGH ISLAND. 39 



SCIBPUS MOSELEYANUS, Boeck. in Flora, 1875, p. 262. S. sulcatus, Thou., var. 

 Moseleyauus, Hemsl. Chall. Bot., i. n. p. 155, t. 32 (fig. 6 excl.). 



Only one specimen of this was gathered, but fortunately it was in fruit. The ripe 

 fruits were previously unknown. 



Distribution. Nightingale and Inaccessible Islands. 



SPARTINA ARUNDINACEA, Carmich. in Trans. Linn. Soc. Lond., xii. (1818), p. 504; 

 Kitnth, Enum., \. p. 279 ; Hemsl Chall. Bot., i. n. p. 160, t. 25. 



Ponceletia arundinacea, Thou. Esq. Fl. Trist., p. 36. 



This is one of the predominant plants of the island, apparently growing luxuriantly 

 everywhere up to an elevation of over 1000 feet. 



Distribution. Tristan da Cunha, Inaccessible and Nightingale Islands, and St Paul 

 and Amsterdam Islands. 



POA ANNUA, Linn. Sp. PI., p. 68. 



A few plants of this were found near the ruined huts of some sealers. It is no 

 doubt introduced as it is on Tristan da Cunha. 

 Distribution. Very widely spread. 



II. CRYPTOGAMS. 



FlLICES. 



By R. N. RUDMOSE BROWN, D.Sc. 



ADIANTUM .ETHIOPICUM, Linn. Sp. PL, ed. n. p. 1560 ; Thou. Esq. Fl. Trist., p. 34 ; 

 Hook, and Baker, Syn. Fil., p. 123 ; Hemsl. Chall. Bot., i. ir. p. 163. A. thalictroides, 

 Willd. ex Kunze, in Linmea, x. (1836), p. 530. A. crenatum, Poir. in Lam. Encyc. 

 SuppL, i. p. 137. A. Poiretii, Wikstr. in Kon. Vet.-Akad. Handl. Stock. (1825), 

 p. 443. 



Very plentiful in the glen. 



This is a very variable plant, and the Gough Island plant shows several varieties. 

 Until a satisfactory monograph of the genus appears, it seems preferable to include all 

 the Gough Island specimens under the name of Adiantum sethiopiciim. 



Distribution. --Tristan da Cunha and Inaccessible Island; Central and South 

 America (except the extreme south), South Africa, India, and New Zealand. 



PTERIS INCISA, Thunb. Prodr. Fl. Cap., p. 133 ; Hook, and Baker, Syn. Fil., p. 172 ; 

 Hemsl. Chall. Bot., i. n. p. 163. P. vespertilionis 8. Carmichaeliana, Agardh, Rec. Sp. 

 Gen. Pter., p. 80. P. vespertilionis /3, R. Br. ex Carmich. in Trans. Linn. Soc. Lond., 

 xii. (1818), p. 513. 



Growing in dryer places than the preceding plant ; not very common. 



The Tristan da Cuuha specimens of this widely spread species differ from others in 



