Amongst Coniferae Podocarpus is common to this and preceding sub-regions; Libocedrus extends from California to New Zealand and New Caledonia; Fitzroya is found in Chile and Tasmania; and Araucaria in its most familiar species occurs in Chile.
The name cedar is applied to a variety of trees, including species of several genera of Conifers, Juniperus, Thuja, Libocedrus and Cupressus.
The alpine flora, beginning at 6000 ft., is specially characterized by its rhododendrons, pines (Araucaria and Libocedrus), and palms, by numerous superb species of Agapetes (Ericaceae), and on the summits by an extraordinary association of species characteristically European (Rubus, Ranunculus, Leontodon, Aspidium), Himalayan, New Zealandian (Veronica), Antarctic and South American (Drymus, Libocedrus).
Most of the woods used in construction and manufactures are found between the Bio-Bio river and the Taytao peninsula, among which are the alerce (Fitzroya patagonica), cipres or Chiloe cypress (Libocedrus tetragona), the Chilean cypress (L.
The needle-form represented by Pinus, Cedrus, Larix, &c., the linear flat or angular leaves, appressed to the branches, of Thuja, Cupressus, Libocedrus, &c. The flat and comparatively broad leaves of Araucaria imbricata, A.
In Libocedrus decurrens (Cupressineae) Lawson describes the archegonia as varying in number from 6 to 24 (Annals of Botany xxi.,1907).
In the Mediterranean region occur Cupressus sempervirens, Pinus Pinea (stone pine), species of juniper, Cedrus atlantica, C. Libani, Callitris quadrivalvis, Pinus montana, &c. Several conifers of economic importance are abundant on the Atlantic side of North America - Juniperus virginiana (red cedar, used in the manufacture of lead pencils, and extending as far south as Florida), Taxodium distichum (swamp cypress), Pinus rigida (pitch pine), P. mitis (yellow pine), P. taeda,P. palustris, &c. On the west side of the American continent conifers play a still more striking role; among them are Chamaecyparis nutkaensis, Picea sitchensis, Libocedrus decurrens, Pseudotsuga Douglasii (Douglas fir), Sequoia sempervirens, S.
Libocedrus tetragona, Fitzroya patagonica, Araucania brasiliensis, A.