GEOGRAPHICAL BOTANY. 413 



Hooker and Taylor, (p. 366 ;) 66 sp. more from the 

 Falklarids, Cape Horn, and Kerguelen's Land, by the 

 same author, (p. 454 ;) 73 antarctic Jungermanniee, by 

 Hooker and Wilson ; with the new genera Lophiodon and 

 Hymenodon (p. 533), and 151 antarctic Lichens, by 

 Hooker and Taylor, (p. 632.) 



Dr. Hooker paid particular attention to the distribu- 

 tion of the Alyce floating in the high latitudes of the 

 Southern Ocean. (Antarct. Voy., Introduct.) Macro- 

 cystis and Urvillea were found common as far as the 

 northern limit to the floating ice, in one instance they 

 extended to 64 S. lat. ; but they usually disappeared 

 much sooner, e.g. south-east of America, below 55S. 

 lat. But in the latter meridian a new form of Alga 

 appeared below 63 S. lat., which although previously 

 found in D'Urville's expedition, has since been described 

 as Scytothalia Jacquinotii. Here, near the coast of 

 Palmer's Land, on Cockburn's Island, (64 S. lat.), no 

 Phanerogamous plants were met with, only 20 Crypto- 

 gamia. These appear to be the last forms of plants in 

 the direction of the antarctic pole ; for even the Algae are 

 absent on that continental coast upon which the active 

 volcano Erebus and .the extinct volcano Terror are 

 situated, and where the soil at the level of the sea ap- 

 peared for the first time entirely deprived of vegetation, 

 a sight never before witnessed, and from which nature 

 appears to have preserved even the highest latitudes of 

 the north. 



