Bucnanan.—Sketch of the Botany of Otago. 187 
spread, and the bush on the east is extensive enough to have retained every 
species from accidents of fire-denudation, if they ever existed there. Latitude 
does not account either for the difference, as several of the species absent on 
the east, range from the North Island to Riverton on the west coast. 
The following plants of the western region'will not be found on the east 
except a few isolated individuals, and those generally young plants :— 
Metrosideros lucida, Weinmannia racemosa, Pittosporum rigidum, Panas 
anomalum, P. lineare, P. arboreum, Olearia operina, O. colensoi, O. angusti- 
Jolia, O. cunninghamii, O. moschata, O. hectori, Plagianthus lyallii, Sophora 
tetraptera var. microphyllum, Senecio bifistulosus, S. rotundifolius, S. cassini- 
oides, Archeria traversii, Hedycarya dentata, Ascarina lucida, Fagus fusca, F. 
solandri, F. menziesii, Freycinetia banksii, Cordyline indivisa. 
Many of the sub-alpine plants of this list are also found in the valleys, 
such as Olearia moschata and O. hectori, the latter attaining its maximum 
of growth in the Wyndham Valley. Alpines could not be fairly represented 
on the east, and are not included. If the eastern climate of Otago be not 
adapted for the growth of so many species as the west, it seems to be the 
best adapted of any portion of New Zealand for the full development of cer- 
tain other species. 
The following species attain their maximum of growth on the east 
of Otago :— 
Griselinia littoralis—trunks measuring from 4 to 8 feet in diameter, — 
Melicytus ramiflorus, Fuchsia excorticata, Panax crassifolium, P. colensoi, P. 
edgerleyi, Pittosporum colensoi, P. eugenioides, Drimys colorata, Plagianthus 
betulinus, Hoheria angustifolia, Elæocarpus hookerianus, Sophora tetraptera 
var. grandiflora, Rubus australis, Carpodetus serratus, Leptospermum ericoides 
—old trees of this having been cut 4 feet in diameter, —Myrtus pedunculata, 
Coprosma rotundifolia, C. linariifolia, Olearia nitida, O. dentata, O. ilicifolia, 
O. avicenniæfolia—these four last growing to timber trees 3 feet in diameter. 
near the ground, and generally branching into three or more branches 18 
inches in diameter and 25 feet high, — Dracophyllum longifolium—attaining a 
diameter of 18) inches,—Myrsine urvillei, Veronica salicifolia, Veronica 
elliptica, Libocedrus doniana—a tree was cut of this near Dunedin nearly 
4 feet in diameter,—Cordyline australis—2 to 4 feet diesen yarn deal. 
bata, C. smithii, and Dicksonia antarctica. 
This comparison of maximum growth applies not only to the western 
region of Otago, but to all New Zealand where these species are found. In 
the smaller flowering plants this maximum of growth is not so easily 
observed, but many of the Cryptogamia show both greater growth and 
variety of species. Nowhere in New Zealand can so large a representation 
of certain genera be found as on Mount Cargill, near Dunedin: as two 
