FROM THE FALKLAND ISLANDS. 171 
It was formerly regarded as the same as the European J). viridis, to which 
it is certainly very closely allied. Reinsch in 1888 referred the South 
Georgian specimens of the German South Polar Expedition of 1882-3 to a 
distinct species, D. Willii, and Skottsberg, who has had ample opportunities 
of examining the plant in the growing condition, agrees with him and 
regards all the subantarctic material previously referred to J). viridis as 
belonging to this species. D. Willi has a wide range in the subantarctic 
and was found in plenty by Mrs. Vallentin in the West Falklands. 
DESMARESTIA HARVEYANA, (терр, in Journ. Bot. xliii. 1905, p. 106 
(figs. 11-15). D. media, Hook. f. et Harv. in Fl. Ant. ii. р. 466 (non Grev.). 
Г). compressa, Skottsb. Subant. u. Ant. Meeresalgen, i. р. 19. 
E. Falklands, Lyall (teste Skottsberg). 
DisrRiB. Falkland Islands, S. Georgia, Graham Land. 
According to the International Rules there was no occasion to change the 
mame proposed bv Mr. and Mrs. Gepp in favour of D. compressa, Skottsb. 
The evidence of the occurrence of the plant in the Falklands rests on 
Skottsberg’s note (/. с. p. 19). 
D. Rossi, Hook. f. et Harv. т Lond. Journ. Bot. iv. (1845) p. 249. 
E. Falklands; Port William, Hooker, Skottsberg. W. Falklands; Roy 
Cove, Fox Bay, West Point Island, Saunders Island, Vallentin; Carcass 
Island, //ennis. 
DisrRiB. Fuegia, Falkland Islands, Heard Island, South Orkney, Victoria 
Land. 
Mrs. Vallentin, who collected several large specimens of this fine and 
‘distinct species, writes that “ the plant is locally known as * Fern Kelp,’ and 
is rare at the present time. It occurs at West Point Island, Roy Cove, 
and the north side of Saunders Island, where it is occasionally torn off and 
washed ashore after gales, together with Durvillea, Lessonia, and Macro- 
cystis. We have only once seen this species growing, that being at Gentoo 
rookery beach, Fox Bay, where it was exposed at extreme low-water. We 
hunted in vain for the plant at Berkeley Sound.” 
D. LIGULATA, Lamour. Ess. p. 25 ; Hook. у. et Harv. т Fl. Ant. ii. p. 467. 
Falkland Islands, Gaudichaud ; West Point Island, Hennis. 
Отзтвтв. Apparently general in the colder seas of both the N. and 8. 
hemispheres. 
As far as can be seen, the South American specimens differ in no way 
from those of Northern Europe. 
D. FIRMA, Skottsb. l c. p. 21, figs. 15-17. D. ligulata, var. firma, J. Ag. 
Sp. Alg. i. p. 169. 
Falkland Islands, teste Shottsherg. 
