16 AUSTRALASIAN ANTARCTIC EXPEDITION. 



The form in every case was that described as Ballia Hombroniana by Montagne- 



Distribution. — Patagonia, Magellan Straits, Cape Horn, Terre des Etats, South 

 Georgia, Petermann L, Falkland I., Crozet, Kerguelen, Auckland I, New Zealand, 

 Tasmania, and the South and South-west coasts of Australia. (I have not met with 

 it on the East coast of Australia.) 



This will then be the first record of the plant in the waters immediately sur- 

 rounding the Antarctic Continent. 



ANTARCTIC MARINE ALG.E COLLECTED BY THE MAWSON 



EXPEDITION. 



Chlorophyce^:. 

 Prasiola crista (Lightf.) Menegh. 

 *Cho?tomorpha Mawsoni sp. nov. 



Ph.eophyce^e. 



Geminocarpus geminatus (Hook, and Harv.) Skottsberg. 

 Phyttogigas grandifolius (Gepp) Skottsberg. 

 Desmarestia compressa (Reinsch) Skottsberg. 



FLORIDEiE. 



Iridcea cor data (Turn.) J.Ag. 



*Iridcea Mawsoni sp. nov. 



Phyllophora antarctica Gepp. 



Callymenia antarctica Hariot. 



Gracilaria simplex A. and E. S. Gepp. 



Plocamium coccineum Lyngbye. 



Schizoneura quercifolia (Bory) J.Ag. 



Bornetia (?) antarctica (Hook, and Harv.) De Toni. 



Ballia callitricha (Ag.) Mont. Form B. Hombroniana Mont. 



The two species - marked by an asterisk are considered to be new to science. 

 Ballia callitricha has not as yet been found on the Eastern Antarctic coast, and 

 very probably does not grow there. The other algse are all previously-recorded 

 Antarctic forms. 



The algse collected by the " Discovery " Expedition from Victoria Land naturally 

 come into comparison with the algal flora of Commonwealth Bay. A. and E. S. Gepp 



