FROM THE FALKLAND ISLANDS. 167 
LESSONIA FLAVICANS, Bory in d’Urville, Flore des Malouines, p. 594 
(1826); Skottsberg, Subant. и. Ant. Meeresalgen, i. р. 73, Taf. 7, text-figs. 
89-90.  L. fuscescens, Bory; Hook. f. et Harv. in Fl. Ant. ii. p. 457. 
L. ovata, Hook. Ё. et Harv. l. с. p. 459. 
E. Falklands, Hooker ; Berkeley Sound, Port Louis, Skottsberg. 
DisrRrB. Chile (Valparaiso-Magellan), Fuegia, Falkland Islands, S. 
Georgia, Kerguelen, Heard Island. 
No algologist has had such good opportunities for studying these plants 
as Dr. Skottsberg, and we must take his verdict that the debatable 
L. ovata, Hook. f. & Harv., is not specifically distinct from L. flavicans 
(=L. fuscescens). Skottsberg goes into the question of synonymy, and 
gives a good and illustrated account of the anatomical structure of both 
this and the two other Falkland Islands species. 
L. FRUTESCENS, Skottsb. Subant. и. Ant. Meeresalgen, i. р. 78, Taf. 8. 
E. Falklands ; Berkeley Sound, Port Louis, Port Stanley, Skottsberg. 
Distris. Falkland Islands. 
In contrast to Г. flavicans and L. frutescens this species is found in the 
uppermost part of the sublittoral region and is exposed at dead low-water. 
MACROCYSTIS PYRIFERA, Ag. Sp. i. p. 46. 
Falkland Islands ; general, all collectors. 
Distris. Galapagos Islands to Cape Horn, Fuegia, Patagonia, Falkland 
Islands, S. Georgia, Tristan da Cunha, Cape of Good Hope, Prince Edward 
Island, Crozets, St. Paul, New Amsterdam, Kerguelen, W. & S. Australia, 
Tasmania, New Zealand, Chatham Islands, Auckland Island, Campbell 
Island, Tahiti (teste Grunow) ; W. Coast N. America (Sitka-N. California), 
Okhotsk Sea, Aleutian Islands. 
The classical account of this wonderful plant is to be found in the pages 
of the ‘Flora Antarctica. Hooker brings together 10 species under one 
name, and shows that the variation displayed at different localities is a 
matter of habitat. After a summary of the history of the alga he narrates 
his own observations in the Antarctic, and concludes with a paragraph on 
its interesting distribution. Circling the globe in the southern temperate 
and subantarctic zones, and stretching up with the Humboldt Current оп the 
west coast of South America as far as the equator, the plant is found also in 
the Northern hemisphere from Alaska down to S. California. In the Atlantic 
and Indian Oceans, on the other hand, it is confined to the southern waters. 
As regards the length of the fronds, Mrs. Vallentin writes :—“ In the 
‘Flora Antarctica’ Hooker stated that some of the plants which grew in 
Christmas Harbour, Kerguelen Island, were more than 300 feet long ; and 
elsewhere near the same island, some specimens were estimated to measure 
700 or even 1000 feet in length. Along the shores of this archipelago, 
