140 ON THE HUON PINE, &c. 
within much narrower limits. Thus, out of the ten genera, 
and between fifty and sixty species, scattered over the sur- 
face of the globe south of the Equator, Arthrotaxis and 
Microcachrys (Hook. fil.) are the only two that are restrict- 
ed to a single locality. Of the first of these there are but three 
species, all limited to an area not greater than Yorkshire. 
Araucaria, on the other hand, of which there are five known 
species, has them very widely dispersed, only one country, 
Australia, presenting two of them. 
Although some uncertainty still exists respecting the kinds 
of Conifere inhabiting the vast tracts of the Cape Colony, 
and the rarely visited mountains of Chili and Patagonia, 
those of Australia and New Zealand are now so well under- 
stood, that the following notices may be considered as probable 
approximations to their actual distribution. : 
I. AnAUCARIA;* Juss. This genus includes five known 
species, each with a remarkably narrow range, though 
together they form a widely diffused genus: 1. A. excelsd, 
Aiton, the Norfolk Island Pine, is probably confined to that 
island ; one of the Australian species (A. Cunningham) which 
had Deiri supposed the same, having proved very distinct 
from it, and the New Caledonian one not being fully authen- 
ticated. 2. A. Bidwilli, Hook. (in Lond. Journ of Bot. 
v. 1, p. 503, t. X.) is a noble and recently discovered tree 
of the Brisbane Mountains, near Moreton Bay, New 
Holland. 3. A. Cunninghami, Aiton, the Moreton Bi 
Pine grows on the shores of the waters of the same country. 
4. A. imbricata, Pavon, the * Banksian" or Chili Pine,” 15 
confined to the Chilian Andes, between the parallels | of 
37° and 46°. 5. A. Brasiliensis, the Brazilian Pine, is in- 
digenous on the mountains of South Brazil, in the neigh- 
* This genus has lately been broken up into two; the first containing 
the Brazilian and the Chilian species, for which the name Araucaria has 
been reserved ; to the other, which includes the A. Cunninghami and A. €t 
celsa, Salisbury's name of Eutassa is given. The A. Bidwilli w 
belong to draucaria, as thus limited. The validity of these — has 
hardly been acknowledged by Botanists: 
