164 
IV. CE‘REUS (from cereus, pliant; in reference to the 
shoots of some of the species). D.C. cat. hort. monsp. 1813. 
Haw. syn. 173. Salm-Dyck in litt. D. C. prod. 3. p. 463. 
Lin. syst. Icosdndria, Monogiynia. Sepals very numerous, 
imbricated, adnate to the base of the ovarium, united into an 
elongated tube; outer sepals the shortest, forming the calyx, 
middle ones longer and coloured, innermost ones petal-formed. 
Stamens very numerous, united with the tube. Style filiform, 
multifid at the apex. Berry areolate, tubercular or scaly, either 
from the remains of the sepals, or from their cicatrices when 
they have fallen off. Cotyledons wanting ?—Fleshy grotesque 
shrubs, with a woody axis, and medulliferous inside ; angles ver- 
tical, bearing fascicles of spines, regularly furrowed. Angles or 
wings either numerous or very few. Flowers large, rising from 
the fascicles of spines or indentures on the angles. 
CACTEZ. 
§ 1. Cereds/ri (an alteration from the generic name). Plants 
standing without support, never throwing out roots. Stems up- 
right. 
* Stems with many angles. 
1 C. murrancuta‘ris (Haw. suppl. 75.) stem erect, with 
18-20 angles; angles very close, blunt; prickles setaceous, yel- 
low, longer than the wool from which they rise. k. D. S. 
Native country and flowers unknown. Cactus multangularis, 
Willd. enum. suppl. 33. Perhaps the same as Cactus Kagené- 
kii, Gmel. ex Salm-Dyck in litt. 
Many-angled Yorch-thistle. Clt.1815. Shrub 1 foot. 
2 C. scopa (Salm-Dyck in litt. ex D.C. prod. 3. p. 464.) 
plant erect; stem with 30 vertical tubercled angles ; fascicles of 
prickles crowded, rising from tufts of white tomentum: ray 
prickles setaceous, very numerous and white : central ones 3-4, 
dark-purple. kh. D. S. Native of Brazil. Cactus scopa, 
Link, enum. 2. p. 21. Spreng. syst. 2. p. 494. Plant clothed 
with short, stiffish, setaceous prickles. 
Broom Torch-thistle. Shrub 1 foot. 
3 C. senruis (Salm- Dyck in litt. ex D. C. prod. 3. p. 464.) 
plant erect, somewhat club-shaped ; stem with 20-25 vertical 
tubercled ribs; fascicles of prickles crowded, naked at the base, 
each fascicle containing 15-20 radiating hair-formed curled bris- 
tles, and a straight stiff central spine. k.D. S. Native of 
Mexico. Cactus senilis, Haw. in phil. mag. vol. 63. p. 41. 
Cactus bradypus, Lehm. ind. sem. hort. hamb. 1825. p. 17. 
This is a very singular plant, covered all over with dense hair- 
like bristles; it is of an oblong shape, about 3 inches‘high, of a 
greyish-colour, bent, and hanging, like the grey head of an old 
man, hence the specific name. 
Old-man Torch-thistle. Clt. 1823. Shrub + foot. 
4 C. rawa‘tus (H. B. et Kunth, nov. gen. amer. 6. p. 68.) 
stems erect, branched, with many angles, and clothed with white 
wool; angles membranous, tubercled, and beset with stellate 
fascicles of prickles; central prickle 8-times longer than the 
rest. h.D.S. Native of Quito, near the rivers Aranza and 
Guamcabamba. Stem 10-12 feet high. Central prickle of each 
fascicle 1 or 14 inch long. Flowers rising from lateral and lon- 
gitudinal fissures of the stem, involved in wool. Fruit obovate, 
red, with a whitish green-coloured pulp. 
Woolly Torch-thistle. Shrub 10-15 feet. 
5 C. micraca’sruus (D. C. mem. cact. in mem. mus. 17. p. 
115.) plant dividing into many stems at the base, ovate-oblong, 
greenish, obtuse, with 13 vertical bluntish ribs, with the recesses 
broad, but hardly acute ; fascicles of spines approximating, with 
tomentose areolz; prickles 3 in each fascicle, short, setaceous, 
diverging. h. D. S. Native of Mexico. Coulter, no. 56. 
Perhaps a species of Echinocdctus. Plant hardly an inch high 
and the same in thickness. 
Small-spined Torch-thistle. Pl. 1 inch. 
IV. CEREUS: 
6 C. potyLépnus (D. C. 1. c.) plant quite simple, erect, green, 
cylindrical, with 15-18 vertical ribs, and with the furrows acute ; 
crests rather repand; fascicles of prickles approximating, with 
the young areole convex and tomentose; prickles 8-9 in each 
fascicle, yellow, straight, diverging, but the central one is long 
and erect. h. D. S. Native of Mexico. Coulter, no, 15. 
Plant 30-40 feet in height, without any branch, according to 
Coulter. 
Many-crested Torch-thistle. Shrub 30 to 40 feet. 
7 C. Li'yxu (Lehm. ind. sem. hort. hamb. 1827. p. 16.) 
plant oval, green, with 13 angles; ribs obtuse, bearing flowers 
at the top from the axils of the fascicles of spines; 3 central 
spines in each fascicle erectly spreading, and the 10 ray ones 
slenderer, much more spreading ; stigmas 8. k. D.S. Na- 
tive of Mexico. Calyx half an inch long, beset with greenish 
yellow scales, which are furnished with purple bristles and white 
cobwebbed wool. Petals numerous, truncate at the apex, 
yellow, with purple bases. Style yellow. Stigmas purple. 
Link’s Torch-thistle. Clt. 1828. Shrub }-foot. : 
8 C. Le’ccun (Coll. hort. ripul. append. 5. t. 2. under Cactus) 
plant ovate, tapering to the apex, with numerous blunt angles ; 
fascicles of spines approximate, woolly at the base ; spmes white: 
ray ones spreading: central one long and straight. k. D. S. 
Native of South America. 
Lecche’s Cereus. Clt.? Shrub 1 foot. 
*# Stems with 6-12 angles. 
9 C. nexaco nus (Willd. enum. suppl. 32.) plant simple, 
erect, large, usually with 6 strong ribs ; fascicles of spines middle- 
sized; prickles short, brown. h. D. S. Native of South 
America. Cactus hexagdnus, Lin. spec. 1. p. 667. Andr. bot. 
rep. t.513. Cactus Peruvianus, D. C. pl. grass. t. 58.—Bradl. 
succ. 1. p. 1. t. 1. The plant is about 40 feet high, usually 
without any branches, varying with 5-6-7 angles. Flowers soli- 
tary, 6 inches long ; having the sepals along the tube greenish 
and irregularly imbricated ; limb a little expanded, reddish out- 
side and white inside. Stamens greenish. Fruit dark purple, 
according to Plumier. 5 
Var. B, abnórmis (Willd. enum. suppl. 31.) stem simple, ob- 
long, irregularly furrowed, and tubercled ; tubercles oblong, 
compressed, unequal, bearing prickles at the apex, and rather 
woolly. h.D.S. Native of South America. C. Peruviânus 
B, monstròsus, D. C. cat. hort. monsp. diss. t. 11. Flowers 
twin, nearly as in C. hexagonus, but more expanded. and larger, 
with the outer sepals reddish, but the inner ones are pure white 
and serrated ; tube striated with green on the outside. Stigmas 
9-13, greenish. 
Hexagonal Torch-thistle. Fl. Jul. Aug. Clt. 1690. Tr. 40 ft. 
10 C. Orronis (Lehm. ind, sem. hort. hamb. 1827. p- 16.) 
plant oval, green, attenuated at the base, with 10 angles; ribs 
obtuse, bearing the flowers above from the fascicles of spines: 
4 central spines in each fascicle, and 10-14 slender, spreading 
ray ones; stigmas 14. h.D.S. Native of Mexico. Caiya 
tubular ; scales acute, greenish yellow, furnished with a fascicle 
of purple hairs, and white, cobwebbed wool. Petals nu 
erosely serrated at the apex, rather diaphanous, yellow. Styze 
yellow. Stigmas purple. 
Otto’s Torch-thistle. Clt.? Shrub 4 foot. 
11 C. Peruvia‘nus (Haw. syn. 171.) plant large, erect, 
usually 8 angles or ribs ; angles blunt, smooth, glaucous 5 spines 
whitish, rising from white tomentum, the lower one very SMa» 
and the central one very strong. h.D. S. Native of Pern 
and Curassoa. Cactus Peruvianus, Lin. spec. 667. Willd. enum. 
suppl. 32. Céreus ebtirneus, Salm-Dyck, in cat. hort. Dyck: 
1822, Cactus Coquimbanus, Molin. chil. ed. gall. p- 140. ex 
with 
