T. Krrx.—On a new Species of Fagus. - 297 
EXPLANATION OF PLATE XVII. 
I. Stilbocarpa polaris (after Hooker). 
Bud 
1. Bud. 
2. Staminate flower with petals removed. 
8. Stamen. 
4. Pistillate flower. 
5. Portion of ovary, showing a single ovule. 
6. Section of ovary. 
7. Ripe fruit. 
8. Section of fruit. 
9. Seed. 
10. Longitudinal section of seed. 
. Embryo. 
IL Aralia lyallii, T. Kirk. 
1. Bud. 
2. Stamens. 
8. Perfect flower. 
4. Pistillate flower. 
5. Longitudinal section of pistillate flower. 
6. Transverse section of ovary 
7. Ovule. 
8. Fruit. 
9. Longitudinal section of seed. 
Art. XXXVIL.— Description of a new Species of Fagus. By T. Kirk, F.L.8. 
[Read before the Wellington Philosophical So-iety, 1st October, 1884.] 
X 
Fagus blairii, n. 8. 
A tree 40-60 feet high, trunk 2-24 feet in diameter. Young twigs and 
petioles slightly pubescent. Leaves spreading, petioled, ovate, entire, 
minutely apiculate, abruptly rounded at the base, coriaceous, $'—$' long, 
4'-4 broad, clothed beneath with fulvous appressed tomentum. Valves of 
the involucre with a membranous margin and one or two narrow scales at 
the outer base. Nuts winged, wings shortly bifid. 
Hab. South Island. By the Little Grey River, Nelson, Head of Lake 
Wakatipu, Valley of the Dart, Otago: T. Kirk. Five Rivers Plain: W. 
N. Blair. 
This species is closely allied to F. cliffortioides, Hook. f., from which it 
differs in the habit and spray, which resemble those of the European beech, 
and especially in the ovate apiculate leaves, which are of larger size and are 
never cordate, while the pubescence is of a fulvous hue, never white. I have 
