REPORT ON THE BOTANY OF THE ISLANDS OF THE SOUTHERN OCEAN. 257 



HEPATIC^E. 

 Fossombronia australis, Mitt. 



Fossomhronia aiistralis, Mitt, in Journ. Linn. Soc. Lond., xv. p. 73, et in Phil. Trans. Roy. Soc. 

 LonJ., clxviii. p. 45. 



Heard Island. Moseley, 



Also in Kerguelen Island. 



Barren specimens, but they appear to be the same as fertile plants from New Zealand 

 and Tasmania. With the habit and appearance of the European Fossombronia pusilla, 

 they have the size of Fossombronia angulosa, Raddi. 



ALG^E. 



MELANOSPERME^E. 



FuCACE^E. 

 Scytothalia obscura, Dickie. 



Scytothalia obscura, Dickie in Journ. Linn. Soc. Lond., xv. p. 47. 



Frondibus e radice callosa, inferne simplicibus, superne decomposito-pinnatus ; phyllo- 

 diis linearibus, apicibus indivisis bel bifidis, acutis ; receptaculis ? 



A solitary specimen, having several fronds from a scutate root, agreeing in structure 

 and general habit with the genus Scytothalia. What seem to be immature receptacles 

 are crowded on the margins and surface of the fronds. 



Heard Island. Moseley. 



Sporochnace^e. 

 Desmarestia rossii, Hook. f. et Harv. 



Desmarestia rossii, Hook. f. et Harv. in Hook. Lond. Journ. Bot., 1845, p. 249 ; Hook, f., Fl. An- 

 tarct., p. 161, t. 172, 173 ; Dickie in Journ. Linn. Soc. LonA, xv. p. 47. 



Heard Island. Moseley. 



Kerguelen Island ; Patagonia ; Falklands. 



Laminariace^e. 

 Lessonia nigrescens, Bory. 



Lessonia nigrescens, Bory in Duperr. Voy. "Coquille," Bot. Crypt., p. 80, t. 5 ; Kiitz., Sp. Alg., p. 581 ; 

 Hook, f., Fl. Antarct., t. 167, 168 ; Dickie in Journ. Linn. Soc. Lond., xv. p. 47. 



Heard Island. Moseley. 



Falklands ; Patagonia. 



(bot. chall. exp. — paet ii. — 1884.) B 33 



