Systematic Botany.] SUBANTARCTIC ISLANDS OF NEW ZEALAND. 403 



ROSACEAE. 



Geum albiflorum, Cheesem., n. comb. 



Sieversia albiflora. Hook, f., Fl. Antarct., i, 9, t. 7 (1844). Geum parvi- 

 florum, Hook, f., Handb. N.Z. Fl., 55 (1864), so far as the Auckland 

 Island locality is concerned, but not of Smith. G. aucklandicum, 

 Greene, Pittonia, iv, 225 (1895). G. sericeum, T. Kirk, Students' FL, 

 128 (1899). 



Auckland Islands : Rocky places on the hills ; Hooker : highest part of Adams 

 Island, alt. 1,000-2,000 ft. ; Kirk, Aston ! Tennant ! (Endemic.) 



I much regret that the few specimens I have seen of this interesting plant are 

 in poor condition, and out of flower, so that I am unable to add anything to the 

 descriptions given by Hooker and Kirk. The foliage looks very different to that 

 of G. 'parviflorum, partly owing to the upper surface being much more densely villous 

 with long soft hairs, and to the very prominent veins of the under-surface, which 

 give it a strongly rugose appearance. Kirk also mentions as a diagnostic character 

 of importance that the style is much shorter than the ripe achene, whereas it is much 

 longer in G. farviflorum. 



It is not at all clear why both Greene and Kirk, in recognising that the species 

 was distinct from parviflorum, should have passed over Hooker's original name of 

 albiflorum. As it is obviously entitled to precedence, I have adopted it here. 



Acaena Sanguisorbae, Vahl. 



Acaena Sanguisorbae, Vahl., Enum., i, 294 (1804) ; Hook, f., Fl. Antarct., 

 i, 9 (1844). 



Auckland and Campbell Islands, Antipodes Island, Macquarie Island. 

 (Throughout New Zealand ; Australia ; Tristan d'Acunha ; Amsterdam Island.) 



Although this species has been recorded from the whole of the southern islands, 

 it is not quite clear that the typical state is indigenous in any one of them, the 

 previous records probably referring to the var. antarctica. Dr. Cockayne informs me 

 that he has collected it only at Port Ross, where it is probably introduced. 



Acaena Sanguisorbae, Vahl., var. antarctica, Cockayne. 



Acaena Sanguisorbae, var. antarctica, Cockayne in Trans. N.Z., Inst., xxxvi, 

 319 (1904). 



Auckland, Campbell, and Antipodes Islands : Abundant throughout. (En- 

 demic.) 



This is the common Acaena of the southern islands, and the one to which most 

 of the previous records refer. 



Acaena adscendens, Vahl. 



Acaena adscendens, Vahl., Enum., i, 297 (1804) ; Hook, f., Fl. Antarct., 

 i, 10 (1844), and ii, 268, t. 96 (1847). 

 Macquarie Island : Near the sea, Eraser, Scott, Hamilton. (New Zealand ; 

 Fuegia ; Falkland Islands ; Kerguelen Island ; Crozets ; Marion Island ; South 

 Georgia.) 



