Falklands, etc.] CRYPTOGAMIA ANTARCTICA. 161 
n) The range of D. viridis in the Northern Hemisphere is not extensive, and almost confined to the shores of 
England and of the German Ocean. It is, however, found at Unalaschka, according to Postel and Rupprecht. 
3. DEsMARESTIA /igulata, Lamourx. Grev. Alg. Brit. p. 91. t.5. Turner Hist. Fuc. t. 99. 
Has. Hermite Island, Cape Horn ; rare. 
Our specimens in no way differ from European ones. It is probably a common Antarctic species, for we have 
received it from the east coast of Patagonia. 
nder the nae í 4. Desmarestia herbacea, Lamourx. Montagne in Voy. au Pole Sud, Bot. Crypt. p. 50. 
Haz. Port Famine, Strait of Magalhaens ; M. Hombron. 
We have seen no Antarctic specimens of this plant, which is also a native of the Cape of Good Hope, Concepcion 
on the west coast of South America, and of North-west America. 
vii, yi 5. DESMARESTIA chordalis, Hook. fil. et Harv.; fronde coriaceo-cartilaginea compressa anguste lineari 
n tri-quadripinnata, pinnis pinnulisque longissimis oppositis distantibus apice longe nudis, pinnulis sepe 
alternis elongatis inermibus chordiformibus. Nobis in Lond. Journ. Bot. vol. iv. p. 249. 
8 P 
Haz. Christmas Harbour, Kerguelen’s Land; very abundant, in two to five fathom water. 
T Alga socialis, rupicola, ceespitem gramineam submarinam late extensam efficiens. Fyondes e radice anguste 
: scutata valde elongatee, 3-5-pedales. Stipes 1-14 lin. diametro. Pinne paulo angustiores, pinnulis 4 lin. latis. 
ie A very noble species, recognizable at once by the long whip-like naked apices of its pinne. In the great 
m. abundance of this ما4‎ consists one of the peculiarities in the submarine vegetation of Kerguelen's Land. 
ELI 6. DESMARESTIA Rossii, Hook. fil. et Harv.; fronde coriaceo-cartilaginea compressa lineari bi-tripinnata 
circumscriptione anguste lanceolata, pinnis pinnulisque omnibus oppositis basi apiceque attenuatis acutis 
sori in the fom d i erectis v. ultimis appressis margine integerrimis. Nobis in Lond. Journ. Bot. vol. iv. p. 249. (Tas. CLXXIL., 
ned and forme of CLXXTIT.) 
sis of Cop ge Haz. Staten Land, A. Menzies, Esq. Hermite Island, Cape Horn, and the Falkland Islands; very- 
abundant. 
Frondes 4-8 ped. longe, anguste lanceolatee, nunc apices versus dilatatee, inferne bipinnate, supra medium tri- 
pinnatee, valde coriaceee. Caules stricti, 2-3 lin. lati. Pinne 1 lin. late pinnnulseque opposite, suberectze, axillis acutis, 
basi apiceque attenuate. 
Even a nobler species than the last, from its great size and opposite ramification. In general form it‏ ال 
resembles the D. ligulata, but is of a totally different consistence, being much more rigid, coarser, and thicker.‏ 
۱ The fronds are sometimes curiously dilated towards the apex, when they are generally linear below the expanded 
"TT. portion, This appearance is produced by the upper pinnee elongating and becoming thrice pinnated ; they are 
HT then also of a paler colour than the lower ones. 
y, the Doni Pirate CLXXIL, CLXXIII. Fig. 1, transverse section of stem; fig. 2, horizontal, and fig. 3, vertical slice of 
eg, needy the same :— magnified. 
+ 8. DICIYOSIPHON, Gre». 
1. Drorvosrenox fasciculatus, Hook. fil. et Harv., in FU. Antarct. Pt. 1. p. 178. t. 49. f. 1. 
Haz. Berkeley Sound, Falkland Islands, and Christmas Harbour, Kerguelen's Land. 
We have before noticed this plant, which is the Southern representative of the Northern and Arctic. D. fenieu- 
mudan, شا‎ laceus. 
