CACTEE. 
Bertol. virid. bon. 1824. p. 4.— Bradl. suce. t. 12.—Lob. icon. 
2. p. 25.—Mor. oxon. sect. 17. t. 37. Like C. hexagònus, but 
differs in being clothed with glaucous bloom. 
Var. (3, monsiròsus (Salm-Dyck, 1. c.) ribs nearly obliterated ; 
fascicles of prickles spirally confluent. 
Peruvian Torch. thistle. Fl. Aug. Clt. 1728. Tr. 20 feet. 
12 C. nepraconus (Haw. syn. 178.) plant erect, oblong, 7- 
angled. h.D. S. Native of South America. Cactus hetero- 
gonus, Lin. spec. 666. hort. cliff. 181. The plant is said by 
Linnæus to be 1-2 feet high. Perhaps distinct from C. hexago- 
nus and C. stridtus. Flowers white. 
Seven-angled Torch-thistle. Fl. Jul. Clt.1728. Sh. 1 to 2 ft. 
13 C. cranpispinus (Haw. in phil. mag. feb. 1830. p. 111.) 
plant 8-angled; prickles nearly 3 inches long; flowers campa- 
nulate, without a tube; fruit globose, spiny. h. D. S. Native 
of St. Domingo.—Plum. amer. t. 195. f. 2. Large, bluntly 
angled. Spines subulate, 12-13 in a fascicle. Petals obtuse, 
lanceolate, serrated. 
Great-spined Torch-thistle. Shrub large. 
14 C. serruuirtorus (Haw. |. c.) plant 8-angled; bristles 
half an inch long; petals 5-times shorter than the tube ; fruit 
rather conical, large, scaly, unarmed. R. D. S. Native of St. 
Domingo.—Plum. amer. t. 195. f. 1. Large, bluntly angled. 
Bristles about 20 in each fascicle; fascicles remote. Petals 
narrow, lanceolate, serrulate, hardly an inch long, but the tube 
is 43 inches long, and scaly. Very like C. hexagdnus, but the 
spines are more numerous, longer, and slenderer. 
Serrulated- petalled Torch-thistle. Shrub large. 
15 C. monoctonos (D. C. prod. 3. p. 464.) plant tall, erect, 
with 8 angles; angles blunt, compressed; spines stellate, nearly 
equal; petals emarginate at the apex. h.D. S. Native of 
the Caribbee Islands.—Plum. ed. Burm. t. 191. exclusive of the 
synonymes. Plumier has himself made his plant the same as 
Č. Peruvianus, but by Linnzus it has been referred to C. hexa- 
gonus, but it differs from both these species, in the petals being 
bluntly emarginate at the apex, and nearly obcordate. Limb of 
flower spreading. Style exserted; stigma 5-cleft. The name 
is derived from povoc, monos, alone, and KAovoc, klonos, a noise ; 
but the application is not evident to. us. 
Confused Torch-thistle. Shrub 20 feet. 
16 `C. rimprra‘tus (Lam. dict. 1. p. 539. under Cactus) plant 
tall, erect, bluntly 8-angled ; prickles setaceous, white ; flowers 
with a short tube; petals fringed. k.D. S. Native of St. 
Domingo, in arid woods.—Plum. ed. Burm. t. 195. f. 1. Stem 
the thickness of a man’s leg, and about 18-25 feet high. Flowers 
rose-coloured, campanulate, with few petals. Stamens very 
numerous; stigma multifid. Fruit globose, red, size of an 
orange, beset with prickly tubercles; flesh red. 
Fringed-petalled Torch-thistle. Shrub 18 to 25 feet. 
17 Č. ny’strix (Salm-Dyck. in litt. ex D. C. prod. 3. p. 464.) 
plant erect, green, shining, 9-angled; ribs rather compressed ; 
prickles rising from grey tomentum, with 9 radiating ones, 2 
small upper ones, and 3-4 strong, central ones, which are painted 
with white and brown. h.D. S. Native of South America ? 
Cactus hystrix, Salm-Dyck. obs. bot. 1822. Old prickles grey, 
blackish at the apex. This is different from Cactus lætus of 
H. B. et Kunth, and from C. hýstrix, Haw. 
Porcupine Torch-thistle. Shrub. 
18 C. ye‘rox (Haw. in phil. mag. 1830. feb. p. 107.) plant 
oblong, nearly terete; with usually 8 ribs ; spines divaricate, 
brown, dense. }.D.S. Native of Brazil. Plant firm, green, 
thickly beset with horned spines, and of these there are usually 
6 outer radiating ones, 4-5 middle ones, and 1 long central one 
m each fascicle. i 
Fierce Torch-thistle. Clt. 1827. Shrub 1 foot. — 
19 C. crissus (Haw. syn. 182.) plant erect, longish, usually 
8-angled, deeply furrowed, branched at the base ; prickles when 
165 
Di tS 
IV. Cereus. 
old half an inch long, white, but tipped with black. 
Native of South America. The rest unknown. 
Grey-spined Torch-thistle. Clt. 1809. Shrub 3 to 4 feet. 
20 C. crenuca‘rus (Salm-Dyck, obs. bot. 1822.) plant erect, 
greyish green, with 8-9 angles ; ribs blunt, crenulated ; prickles 
white, rising from grey tomentum, blackish at the apex, 9 in 
each fascicle, radiating and equal, and 1 long central one. R. 
D. S. Native of South America. C. Royéni, Willd. suppl. 
enum. p. 32. Stem rather woolly at the apex ; wool grey, at 
length falling off. 
Var. B; plant rather slenderer than the species; and the 
prickles are shorter. Salm-Dyck, in litt. 
Crenulated Torch-thistle. Clt. 1728. Shrub 2 to 3 feet. 
21 C. cinera’scens (D. C. mem. cact. in mem. mus. 17. p. 
116.) plant simple, erect, greyish green; with 8 blunt tubercular 
ribs, and narrow recesses; areolz while young convex and vel- 
vety; prickles 14 in each fascicle, white, setaceous, stiff, outer 
10 radiating, central 4 erectly diverging, and longer than the 
ray ones. k. D. S. Native of Mexico. Coulter, no. 23. 
Stem 6 inches high, and 2 inches in diameter. Outer prickles 
6-9 lines long: central ones 12 lines long; in fascicles, which 
are 5-6 lines distant from each other. 
Var. B, erdssior (D. C. I. c.) stem thicker ; fascicles of spines 
more distant. 
Var. y, tenùior (D. C. 1. c.) stems slenderer ; ribs more ap- 
proximate. Very like C. pentalophus, but differs in being 8- 
angled, not 5-angled. 
Greyish Torch-thistle. Clt. 1830. Shrub 4 foot. 
22 C. catve'scens(D.C.1.¢.) plant simple, or a little branched 
at the apex, erect, green, obtuse, and rather umbilicate at the 
apex, with 7-8 vertical, obtuse ribs, and acute furrows ; areola, 
while young, convex and tomentose, but at Jength becoming 
nearly glabrous ; prickles 8-9 in each fascicle, brown, stiff, di- 
verging: the central ones hardly to be distinguished from the 
outer ones. h.D.S. Native of Mexico. Coulter. Very like C. 
Peruvianus. Fascicles of spines 6-9 lines distant from each other. 
Calvescent Torch-thistle. Shrub 8 to 10 feet ? 
23 C. mareina'tus (D. C. l. c.) plant simple, or a little 
branched at the apex, erect, green, obtuse at the tip: with 7 
vertical ribs, and acute recesses; crests obtuse, woolly their 
whole length from white tomentum, in consequence of the oval 
areolz being confluent; prickles 7-9 in a fascicle, stiff, grey, 
short : with the central ones hardly to be distinguished from the 
ray ones. h. D. S. Native of Mexico. Coulter, no. 13. 
Stem 23 and 3 inches in diameter. Prickles 1-2 lines long. A 
very distinct species. 
Margined Torch-thistle. Shrub. 
24 C. arpisrr'nus (Salm-Dyck, obs. bot. 1822.) plant erect, 
greyish green, with 9 or 10 angles; ribs obtuse, very prickly ; 
prickles grey, tipped with yellow, rising from grey tomentum, 
11 radiating ones and 4 central in each fascicle. h. D. S. 
Native of South America. Very like C. crenuldtus, but more 
slender and more woolly. Old plant only woolly at the apex, 
but the young plant all over; the wool grey. Salm-Dyck, in lit’. 
White-spined Torch-thistle. Shrub 2 to 3 feet. 
25 C. reca‘tis (Haw. suppl. p. 75.) plant erect, 9-angled, 
furrowed ;- spines fu!vous, elongated, when young about equal in 
length to the wool. k. D. S. Native of South America. 
Fascicles of spines much crowded. 
Royal Torch-thistle. Clt.? Shrub 10 feet. 
26 C. stricrus (Willd. enum. suppl. p. 32. under Cáctus,) 
plant erect, green, shining, 7-9-angled; ribs rather compressed 
repand ; prickles brown, rising from brown tomentum: each 
fascicle composed of 8 radiating ones, a small superior one, and 
3 central ones, which are much longer than the rest. h. D. 5. 
Native of South America. There is hardly any wool at the top 
of the stem; the rest unknown. Salm-Dyck. in litt. 
