REPORT ON THE BOTANY OF THE ISLANDS OF THE SOUTHERN OCEAN. 147 



Linn., in Fuegia, the Falklands, &c. Carniichael records the plant, as given above, from 

 " ravines on the side of the dome." 



CARYOPHYLLE^E. 

 Cerastium triviale, Link. 



Cerastium triviale, Link., Enum. PL Hort. Bot. Berol., L p. 433. 



Cerastium vulgatum, Linn., Sp. PI., 2d ed., i. p. 627 ; DC., Prodr., i. p. 415 ; Benth., Fl. Austr., L p. 156. 



Tristan da Cunha and Inaccessible Island. Moseley. 



This very widely dispersed plant was most likely introduced, as neither Thouars nor 

 Carmichael collected it. Mr Bentham, however, expresses the opinion that it is indigenous 

 in Australia and Tasmania. 



Polycarpon tetraphyllum, Linn. 



Polycarpon tetraphyllum, Linn. f. ; DC, Prodr., iii. p. 376; Benth., FL Austr., i.'p. 163. 



Tristan da Cunha. — Waste gravelly places — Milne and MacGillivray ; Moseley. 

 Probably introduced since Carmichael's stay on the island. It is now very widely 

 dispersed in all parts of the globe, except tropical Asia. 



GERANIACE^]. 



Pelargonium australe, Willd., var. acugnaticum. 



Pelargonium australe, Willd. ; DC, Prodr., i. p. 654 ; Benth., Fl. Austr., i. p. 298, var. acugnaticum, 



Benth., Lc., p. 299. 

 Pelargonium acugnaticum, Thouars, Esquisse Fl. Trist., p. 44, t. 13 (species); Carmich. in Trans. 



Linn. Soc. Lond., xii. p. 507. 



Tristan da Cunha. Thouars ; Carmichael ; Moseley. Inaccessible Island. 

 Moseley. 



One of the commoner plants in the lower parts of the islands, or at least in the island 

 of Tristan da Cunha. 



It is not possible to say from the specimens before us whether this form deserves 

 specific rank. Pelargonium australe is an exceedingly variable species, and some of the 

 small-flowered forms of it from New Zealand are very near Pelargonium acugnaticum; 

 yet we have not seen any quite bke it. Moseley 's specimens are all in a flowerless 

 condition, and Carmichael's, though bearing plenty of flowers, is without ripe fruit. 

 Among other things, the sepals of the Tristan plant are proportionately longer and 

 narrower, and lanceolate-acuminate in shape, and distinctly three-nerved. 



Oxalis corniculata, Linn. 



Oxalis corniculata, Linn.; DC, Prodr., L p. 692; Benth., Fl. Austr., L p. 301; Hook. £, Handb. 

 FL N. Zeal., p. 38. 



Tristan da Cunha. — Introduced ? — MacGillivray ; Moseley. Inaccessible Island. 



Moseley. 



