CONTRIBUTIONS TO BOTANY. 
255 
inches long, the secondary spines inch long, and 4 lines 
apart, and the tertiary spinelets are 3 to 4 lines long, all form- 
ing a dense entanglement; the leaves are channeled above, 
about 2 lines long, 1 line broad, tapering into an almost obso- 
lete sulcated petiole ; the pedicels are 2 lines long ; the tube of 
the calyx is 3 lines, and its segments 1 line long; it is quite 
cylindrical, and 2 lines in diameter; the filaments are only 
line in length, the anthers globose. The flowers much re- 
semble those of the preceding species in size and form, but the 
annular disk is placed nearer the base of the tube ; they are quite 
glabrous. 
4. Colletia ferox, Gill. & Hook. Bot. Misc. i. 154. tab. 44 B; — 
implexo-spinosa, ramulis abbreviatis, aphyllis, viridibus, spi- 
nisque oppositis, subulatis, compressis, iterumque decussatim 
spinosulis, substriatulis, pungentibus, hinc confertim intri- 
catis ; floribus rosaceis 2-3, fasciculatis, sub spinis e tuber- 
culo squamoso ortis ; pedunculo flore paulo breviore, calyce 
medio constricto, imo subgloboso, limbi laciniis 5, reflexis, 
staminibus 5 parvulis in fauce inter lacinias fere sessilibus ; 
stylo exserto ; fructu 3-lobo, subgloboso, cupula calycina 
sufFulto. — In Andibus Chilensibus et Mendocinis. — v. s. in 
herb. Hook. (Gillies, Cuming). 
This species is very difi’erent in its general appearance from 
the three preceding, its spines being much shorter, very much 
entangled, and of a dark colour ; its flowers are smaller, and more 
contracted in the middle. The primary spines are 2-2i inches, 
the secondary | to 1 inch long; the tertiary spinelets are 
2 to 4 lines ; they are all quite glabrous. The pedicels are 
very slender, 2 fines long; the calyx, including the segments 
of its border, is 3 fines long and 1^ line in diameter at the 
mouth ; the flowers are of a pale reddish-white colour, and of 
thin te.xture*. 
5. Colletia atrox, n. sp. — Discaria Americana, Hook, in partem, 
Bot. Misc. iii. 172 ; — horride spinosa, ramulis pallide olivaceis, 
striatulis, spinis elongatis, validissimis, crassis, secundariisque 
brevibus decussatim oppositis, glaberrimis, valde compressis, imo 
latis et hinc subdecurrentibus, pallide viridibus, apice calloso- 
pungentibus, aphyllis aut foliis caducissimis ; floribus majuscu- 
fis,pafidissimis,2-8, fasciculatis, e tuberculo squamoso ad basin 
spinarum enatis; pedunculo flore paulo breviore, calyce late 
tubuloso, medio subconstrieto, textura tenui, albido, imo in- 
flato, limbi laciniis 5 revolutis ; antheris parvulis, globosis, in 
A representation of this species is given in Plate 34 c. 
