ON THE HUON PINE, &c. 139 
far from the locality of the Pines themselves, can be consi- 
dered as a voucher for the vegetation of the marshes in 
question, we must confess ourselves still ignorant of any 
plant so abundant as to have suggested an appellation for an 
area perhaps as large as Middlesex, though in an island. 
smaller than Ireland. i 
In 1825, Mirbel's Paper on the Geographical Distribution 
of the Conifere appeared, in which Mr. Brown enumerated, 
besides many other new individuals of this Order, two from 
Tasmania : the Podocarpus alpina, Br., which inhabits the 
summit of Mount Wellington, and Callitris Australis, Br., or 
the Oyster-Bay Pine. These, with the Podocarpus asplenii- 
folia of Labillardière, were the only Conifere known to grow 
in this island, until the collections of the late lamented 
Mr. Lawrence arrived, containing a species of Podocarpus ? 
which has been seen by no subsequent Botanist. In 1810 
Mr. Cunningham gathered the Huon-Bay Pine in an imper- 
fect State, and from his specimens the fructification will be 
here described. Lastly, in 1836, Mr. Gunn discovered no 
fewer than three species of the genus Arthrotazis, and another 
Pine belonging to a new genus to be here described (Micro- 
cachrys, nob.) ; since which he has added a second Callitris, 
increasing the number of Conifere from four to ten. Arthro- 
taxis was founded by the late Professor Don,* on two of 
Mr. Gunn’s plants contained in Dr. Lindley’s herbarium. 
Before proceeding to an enumeration of the Tasmanian 
Conifere, | may be allowed to offer a few remarks on the 
distribution of that Order in the southern portion of our 
globe, seeing it has been so greatly augmented since the pub- 
lication of Mirbel’s valuable Memoir.t 
One of the most striking features of the Conifere in the E 
Southern Hemisphere is their general dissimilarity to those of 
the Northern. Yet, although the genera be fewer in num- 
* Don in Linn. Trans. v. 18, p. 171. “ee ae 
T Vide Mirbel, in Mémoires du Muséum, v. 13, p. 38. Le n [9 ieu 
ber, they have an equally wide range; while their species, - ; s x 
though bearing a larger proportion to the genera, are confined = 
