264 
CONTRIBUTIONS TO BOTANY. 
sieuan herbarium, both upon the same sheet as the original 
typical species of C. spinosa ; and these are probably the iden- 
tical plants which Poiret confounded together, in his descrip- 
tion of the typical species, as being brought from Peru (Diet. 
Suppl. ii. 312) : the third specimen was collected by Dombey 
at Tarma. It has much the habit of the preceding species, but 
its branches assume the appearance of a broader and more 
spreading spike : they are of a pale olive hue : the branchlets 
are straight and cylindrical, the primary spines are about 
^ inch apart and 1| inch long ; the secondary spines are 3 lines 
apart, and -g to f inch long ; the tertiary spinelets are 2 to 3 lines 
long, all being clothed with fine sparse down. The inflorescence, 
owing to the closeness of the axils, covers the branchlets, each 
appearing like a densely flowered spike ; the pedicels are 2 lines 
long; the cylindrical calyx, but little swollen, though tumid at 
the base, is 2^ lines, and the segments line long, and 1^ line 
diameter*. 
1 7. Colletia hystrix, Clos, in Gay, Chile, ii. 32 ; — ramulis tere- 
tibus, rectis, rigidis, fuscis, pubescentibus, spinis brevibus, 
compositis, 3-4-natim verticillatis, secus ramos valde ap- 
proximatis, et hinc intricatione formam longam cylindricam 
mentientibus, aut interdum nodos globosos interruptis emu- 
lantibus, omnibus pilis rigidis patentissimis vestitis, et apice 
calloso-pungentibus ; ramulis novellis inermibus, et foliiferis, 
demum spinosis et aphyllis : foliis parvis, ovatis, integris, aut 
obsolete dentatis, membranaceis, subglabris, 3-nerviis, apice 
mucronulatis, imo in petiolum brevem attenuatis ; floribus 
sparsis, subfasciculatis, pedunculo tenui, calyce sicco pallide 
rosaceo, urceolato, medio constricto, imo globoso, limbi la- 
ciniis 5 reflexis, staminibus exsertis, filamentis erectis laci- 
niarum quartse longitudinis, stylo filiformi, longe exserto, 
stigmate capitato-3-lobo. — Chile centralis. v. s. in herb. 
Mus. Paris ; — versus pedem Andium (Gay). 
This is a very distinct species, partaking much of the habit 
of the following, and somewhat of the two preceding. Dr. 
Clos remarks that, seen at a distance, its branches bear much 
the appearance of a Cactics or Cereus, owing to the length of its 
straight branchlets, and the extreme intricacy of its innume- 
rable spines, and verticillated very short ramifications. The 
leaves are oval, rounded at the summit, cuneated at base into a 
short petiole : they are glabrous, toothed on the margins, 2^ 
lines long, 1^ line broad, on a petiole of ^ line; the flowers are 
small and few, the pedicel is 1^ line long, the tube of the calyx 
This species is shown in Plate 36 c. 
