292 
CONTRIBUTIONS TO BOTANY. 
floribus interdum quasi spicatis ; pedunculo brevissimo, piloso ; 
calyce extus superne subgloboso, albescente, imo inflate, viridi 
et piloso, limbi laciniis 4, erectiusculis ; petalis 4, niveis, laciuiis 
brevioribus; staminibus 4, inclusis; antheris reniformibus, 
flavis, connective albo ; stylo ovarioque 2-loculari pilosissimis ; 
fructu ovali, subcarnoso, calyce marcido fulto ; nuce ovata, 
2-loculari, saepeabortu 1-loculari. — Chile. — v. v. ad Concon. — 
V. s. in herb. Hook. (Cuming, 732). 
This tree is of frequent occurrence upon the hills throughout 
the province of Quillota, in which the port of Valparaiso is situ- 
ated, and is, I believe, more generally distributed, at no great 
distance from the sea-coast, in the central provinces of Chile : 
sometimes it appears as a tall bush, but it grows ordinarily to the 
height of 8 or 10 feet, with widely-spreading branches. Its 
trunk, scarcely exceeding 4 or 6 inches in diameter, consists of 
hard red wood, which is much sought for, as it makes an excel- 
lent fuel ; it is also greatly in request for building purposes. Its 
spreading, opposite, subulate, green spines, which decussate at 
the distance of half an inch apart, are from half an inch to an inch 
m length. A single leaf issues from its corresponding stipule, 
that springs from the base of each spine. The leaves ordinarily 
measure | inch, sometimes an inch in length, and 3 or 4 lines in 
breadth, the petiole being 1 line long. Each floriferous branch 
usually originates from the expansion of a tubercle situated 
between the spine and the stipule, and is commonly from to 
3 inches long, with several decussating pairs of leaves towards its 
base, at distinct intervals of 1 to 3 lines, at each of which points 
two or four flowers arise, the leaves gradually disappearing 
towards the ends of these branchlets, the axils then approxi- 
mating by degrees, so that the flowers assume a spicate ap- 
pearance ; each flower is from to 2 lines long, on a peduncle 
less than a quarter of a line in length ; the calyx is of a yellowish- 
white colour, is somewhat contracted in the middle, glabrous in 
the upper part, the inflated base and peduncle being of a greenish 
hue and pubescent ; it is constantly 4- toothed on its border, all 
its parts being 4-merous, and the hooded petals snow-white. Its 
somewhat compressed oval di’upe, enclosing a hard nut, is 2 lines 
long, and 1^ line in diameter; the nut is ligneous and inde- 
hiscent*. Cumiug^s specimen in Sir William Hooker’s herbarium 
is not in seed. Germain’s plant, distributed under the name of 
Trevoa Z-nervia, is Notophana foliosa. 
2. Trevoa ienuis, n. sp. ; — Retanilla 3-nervia, Hook. ^ Am. in 
parte, Bot. ^^isc. iii. 174: ; — arbuscula preecedentis simillima, 
* This plant, with analytical details, is shown in Plate 40 a. 
