CONTRIBUTIONS TO BOTANY. 
295 
axils ; the leaves are 3 lines long and 1| line broad, on a petiole 
of 1 line in length ; the peduncle is 1^ line long, the tube of the 
calyx 1^ line long, retrorsely puberulous ; the segments are | 
line in length; the nennires within the calyx are retrorsely 
pilose, as in T. triaervis ; the ovary and style are nearly glabrous, 
and included *. 
5. Trevoa Closiam. Colletia tetrandra, Clos, in Gay, Chile, ii. 
31 ; — fruticosa, 2-pedalis, dumosa, ramis subaphyllis, intri- 
cato-curvatis, fusco-nigricantibus, rigide spinosis, spinis de- 
cussatim oppositis, subulatis, crassiusculis, simplicibus ; folds 
minimis, caducissimis, lineari-oblongis, crassis, 3-nerviis, fere 
integris, mai’gine obsolete crenato, superne obscure viridibus, 
lucidis, sparsim pilosis, subtus flavido-pallidis et dense 
pilosis, breviter petiolatis; stipulis majusculis, squamiformi- 
bus, imo subamplexicaulibus, valde concavis, rubris, glabris, 
intus parce tomentosis, 2-dentatis ; floribus paucis, e gemma ad 
basin spinarum versus extremitatem ramorum enatis ; pedun- 
culo brevdssimo, albo-tomentoso, calyce urceolato, imo extus 
cinereo-piloso, limbi laciniis 4, erectis ; petalis 4, oblongis, 
valde cucullatis, unguiculatis, laciniis sequilongis, erectis, imo 
subcoloratis et puberulis ; staminibus totidem, iis reconditis, 
demum inflexis ; ovario niveo-piloso, sub-3-lobo ; stylo bi’evi, 
tereti, pilosulo ; stigmate obsolete 3-lobo. — Chile. — v. s. in 
hei'b. Mtis. Pans-, Coquimbo, in via ad Arqueros (Gay, 
264). 
Dr. Clos, on the authority of M. Gay, describes this as a 
low-growing shrub, about 2 feet high, with intricately twisted 
branches, which are armed with numerous simple spines, half an 
inch in length, and a similar distance apart. They are often 
leafless ; the extremely deciduous leaves are very small, almost 
entire, or crenulated on their margin ; they are linear-oblong, 
and 1 to 3 hnes in length. The small white flowers, which be- 
come dark in drying, are 4-merous, and scarcely exceed a line 
in length (including their verj'^ short peduncle), and half a line 
in diameter. The stamens are hidden within the short cucul- 
late petals, the anthers, after dehiscence, becoming peltate, as in 
the other species of the genus. It is known by its vernacular 
name of Abrojo, which in Spanish signifies a bramble. These 
characters are all quite in accordance with those of Trevoa-\. 
8. Talguenea. 
The characters of this genus are imperfectly known, but 
* This species is represented in Plate 40 d. 
t A figure of this plant is given in Plate 41 a. 
