ANNOTATIONS AND ADDITIONS. 165 



or through more than 95 degrees of latitude ; Podocarpus 

 and Ephedra extend almost as far. In Cupuliferse, the 

 species of oak which we are accustomed to regard as a 

 northern form do not indeed pass beyond the equator in 

 South America, but in the Indian Archipelago they re-appear 

 in the southern hemisphere in the Island of Java. To the 

 southern hemisphere belong exclusively ten genera of Coni- 

 ferse, of which I will name here only the principal : Araucaria, 

 Dammara (Agathis Sal.), Frenela (with eighteen New 

 Holland species), Dacrydium, and Lybocedrus, which is 

 found both in New Zealand and at the Straits of Magellan. 

 New Zealand has one species of the genus Dammara (D. 

 australis) and no Araucaria. In New Holland in singular 

 contrast the case is opposite. 



Among tree vegetation, it is in the form of needle-trees 

 that Nature presents to us the greatest extension in length 

 (longitudinal axis) : I say among tree vegetation, because, 

 as we have already remarked, among oceanic Algse, 

 Macrocystis pyrifera, which is found between the coast of 

 California and 68 S. lat., often attains from 370 to 400 

 (about 400 to 430 Eng.) feet in length. Of Coniferse, 

 (setting aside the six Araucarias of Brazil, Chili, New Holland, 

 Norfolk Island, and New Caledonia), the loftiest are those 

 which belong to the northern temperate zone. As in the 

 family of Palms we found the most gigantic, the Ceroxylon 

 andicola, above 180 French (192 English) feet high, in the 

 temperate mountain climate of the Andes, so the loftiest 

 Conifers belong, in the northern hemisphere, to the temperate 

 north-west coast of America and to the Rocky Mountains 



