50 
BOTANY OF KERGUELEN ISLAND. 
1. Prasiola fluviatilis, Sommerfeldt, Supplein. 'FI. Lapp. 1820(tesfe Dickie 
in Arctic llanual, 1876.) P. Sauteri, MenegMni MS., Kiitz. Sp. Alg. 1849, p. 473 ; 
Dickie in Journ. Linn. Soc. xv. 203. 
Oa wet rocks in tlie bed of a streamlet descending from a patch of snow, about 
400 feet above the sea, on the pyramidal hill on the IV. side of Swain’s Bay. 
(European Alps to 9,300 ft. ; Spitsbergen ; streams of W. Greenland.) 
1. Cladophora rupestris, Linn. ; Flor. Antarct. 495 ; Dickie in Journ. 
Jjinn. Soc. xv. 47. 
Christmas Ilarbour, on rocks. Hooker. (General between the arctic ch’cle and 
the Mediterranean; only at Kerguelen Island in the southern hemisphere). 
2. Clad.Oph.Ora arcta, Kts. ; Flor. Antarct. 495 ; Dickie in Journ. Linn. 
Soc. XV. 47, 203. C. Ilookeriana, Ktz. Sj). Alg., p. 418. 
Very abundant on Mijtilus at low-water mark, and in shallow water. Observatory 
Bay, Krtto». (Falkland Islands ; Fuegia; German and N. Atlantic Oceans ; Green- 
land.) 
3. Cladophora simpliciuscula. Hook. f. and Han. Flor. Ant. 496, 
t. cxcii. 4, 1-3; Dickie in Journ. Linn. Soc. xv. 203. 
One very small specimen, probably very young, too imperfect to be identified 
with absolute certainty, but which I think may he referred to this species, was 
obtained on an Annelid tube in Observatory Bay at 5 fathoms, Eaton. (Falklands 
and Fuegia, Hooker.) 
4. Cladophora flexuosa, Griff ; Dickie in Journ. Linn. Soc. xv. 203. 
In tide-pools and at 5 fathoms in Observatory and Swain’s Bays, specimens from 
the deeper water are poor, Eaton. (Shores of Europe; Massachusetts Bay.) 
1. Rhiozoclonium riparium, Both. ; Cladophora riparia. Hook. f. and 
Llarv. Flor. Antarct. 495. 
Christmas Ilarbour, Hooker. (Cumberland Sound ; British coasts, &c.) 
2. Rhizocloninm ambiguum, Ktz.; Conferva amibigiia. Hook. f. and 
Harv. Flor. Antarct. 494, t. cxci. 1. 
Christmas Ilarbour, in the sea. Hooker. 
1. Chaetomorpha Linum, Ktz. ; Conferva Linum, Both. ; Flor. Antarct. 
493. 
Christmas Ilarbour, on rocks near bigh-water mark, Hooker. 
