162 CACTE. 
- Cactus latispinus, Haw. in phil. mag. vol. 63. p. 41. Echinocactus 
platycdnthus, Link et Otto, diss. p. 14. t. 14. without a flower. 
Cactus cornigerus, Moc. et Sesse, fl. mex. icon. ined. Flowers 
2-3 at the top of the plant ex fl. mex. an inch long, with a short 
thick tube, and brownish imbricating sepals, with a purplish 
limb; lobes nearly linear, acute, disposed in one series. 
Horn-bearing Hedgehog-thistle. Clt.1823. Pl. 4 foot. 
5 E. crispa‘tus (D. C. diss. t. 8.) plant obovate, retuse at 
the apex, and rather umbilicate; ribs numerous, from 30 to 60, 
nearly vertical, undulately curled, and tubercular ; prickles in 
fascicles, unequal, straightish. h. DÐ. S. Native of Mexico. 
Cáctus crispatus, Moc. et Sesse, fl. mex. icon. ined. Flowers 
smaller than any other of the genus, at the top of the plant, 
purple; sepals densely imbricated along the tube, oblong-linear, 
acute, disposed in 2 series in the limb. 
Var. B, hérridus(D. C. mem. cact. in mem. mus. 17. p. 115.) 
fascicles of spines approximate ; prickles stronger, more erect 
and longer, of a greyish brown-colour. 
Curled Hedgehog-thistle. Pl. 4 foot. 
6 E. orna‘tus (D. C. mem. cact. in mem. mus. vol. 17. p. 
114.) plant nearly globose: with 8 deep compressed vertical ribs, 
ornamented with transverse rows of flocky down, with 3 fascicles 
on each rib; prickles 7 in a fascicle, straight, yellow, and one 
central. h. D. S. Native of Mexico. Coulter, no. 40. Plant 
5 inches in diameter. Prickles 8-10 lines long. 
Ornamented Hedgehog-thistle. Pl. 4 foot. 
7 E. rusercusa‘tus (Link et Otto, diss. t. 26.) plant nearly 
globose, with 8 nearly vertical ribs, and with the recesses nar- 
row; crests very obtuse, tubercled at the fascicles, of which there 
are 8 or 10 on each rib; areola when young rather velvety ; 
prickles 12-13 in each fascicle, grey, with one central straight 
strong one, the rest radiating. h.D.S. Native of Mexico. 
Coulter. Intervals on the ribs between the fascicles of spines 
8-9 lines. Prickles an inch long. 
Var. B, spiralis (D.C. 1. c.) ribs twisted spirally to the right. 
h.D.S. Native of Mexico. Coulter. Perhaps merely an 
older state of the species. 
Tubercled Hedgehog-thistle. Pl. 3 foot. 
8 E.? cerrsrérmis (D.C. l. e. p. 115.) plant nearly cylin- 
drical, green, with about 13 compressed ribs, with the recesses 
acute, and the crests bluntish; prickles 7 radiating, and one cen- 
tral, in each fascicle, greyish, stiff, slender, with 3 fascicles on 
each rib. h.D.S. Native of Mexico. Coulter. Perhaps a 
species of Céreus. 
Cereus-formed Hedgehog-thistle. Pl. 4 foot. 
9 E. eravce'scens (D.C. 1.c.) plant nearly globose, depres- 
sed, glaucescent, with 11-13 vertical compressed obtuse ribs, 
with 6 fascicles on each rib; areole oval-oblong, when young 
velvety; prickles yellow, straight, with 6-7 radiating ones, and 
one central one in each fascicle. h. D. S. Native of Mexico. 
Coulter. Flowers solitary on the top of each rib, rising in the 
front of a fascicle. Scales of calyx imbricated, smooth, oval, 
acuminated, with membranous ciliated margins. Plant 3 inches 
high, and 5 inches in diameter. Intervals between the fascicles 
on the ribs half an inch. Prickles an inch long. 
Glaucescent Hedgehog-thistle. P1. 4 foot. 
10 E. Coutre'r1; plant nearly globose, depressed, green, 
with 13-18 vertical ribs, with both the recesses and ribs acute ; 
fascicles 3 on each rib; areole oval, when young velvety; 
prickles yellow, stiff, with 7-8 radiating ones, and one erect cen- 
tral one, which is nearly twice the length of the others, in each 
fascicle. h. D. S. Native of Mexico. Coulter, no. 43. 
E. hystrix, D. C. l.c. but not of Haw. Plant 5-8 inches in 
diameter, and 3-4 inches high. Prickles an inch long, central 
ones 2 inches long. Intervals between the fascicles on the ribs 
12-18 lines in length. 
III. Ecurnocactvs. 
Coulter’s Hedgehog-thistle. Pl. 4 foot. 
11 E. osyatxa‘rus (D. C. diss. t. 9.) plant obovate-globose, 
depressed and umbilicate at the apex ; ribs numerous, vertical; 
prickles in fascicles, unequal, divaricate, long; flower solitary at 
the top of the plant, surrounded by spines. k.D. S. Native 
of Mexico. Cactus obvallatus, Moc. et Sesse, fl. mex. icon, 
ined.—Tepenexcomitl, Hern. mex. p. 410. with a figure, 
Spines whitish, needle-shaped, diverging, intricate, Flower 
erect, purple, with the margins of the lobes of the limb white. 
Environed-flowered Hedgehog-thistle. Pl. 3 foot. 
12 E. renuisrr'nus (Link et Otto, diss. p. 12, t. 19. f. 1.) 
plant nearly globose, umbilicately retuse at the apex ; ribs 12, 
bluntish ; prickles in fascicles, slender, recurved, 3 or 4 of which 
are a little larger than the rest; flowers girded by wool. h. 
D. S. Native of Brazil, in the province of Rio Grande. Plant 
green, 2 or 3 inches in diameter. Sides of ribs rather impressed. 
Flowers beyond 2 inches long, yellow ; sepals lanceolate, acute; 
petals dilated, obtuse, each mucronated by a red bristle. Style 
12-15 parted. i 
Var. B, minor (Link et Otto, 1. e. f. 2.) plant smaller; spines 
longer and slenderer, and more bent. 
Slender-spined Hedgehog-thistle. Pl. 4 foot. i 
13 E. meLocacrtiro'rmis (D. C. diss. t. 10.) plant roundish- 
ovate, obtuse; ribs vertical, about 30 in number ; prickles in 
fascicles, diverging, unequal ; flowers numerous, in a kind of 
whorl beneath the apex of the plant. h.D.S. Native of 
Mexico. Cactus multangularis, Moc. et Sesse, fl. mex. icon. 
ined. but not of Willd. Spines brownish. Flowers whitish. 
Sepals numerous, purplish on the outside, imbricated, and ad- 
pressed to the tube; limb expanded ; lobes oblong, acute, dis- 
posed in 2 or 3 series. Stigmas long, 8-12, exserted above the 
stamens. 
Melon-thistle-shaped Hedgehog-thistle. PJ. 4 foot. 
14 E. Lanespo’rru (Lehm. ind. sem. hort. hamb. 1826, p 
17.) plant oblong, with 17 angles; spines slender, stiff, spread- 
ing; vertex of plant very villous and spiny, and bearing flowers. 
hk. D.S. Native of Brazil. Plant green. Fascicles of spines 
approximating, rising from short wool, central spine in each = 
cicle an inch long, the 6 marginal ones unequal, reflexed, an 
spreading. Flowers 2-4, terminal, rising from among wool an 
spines. Calyx tubular. Petals about 20, yellow. Stigma many- 
parted, radiate, purple. 
Langsdorf’s Hedgehog-thistle. Shrub 4 foot. 
+ The flowers of the following species being unknown, some of 
them are probably referrible to the genus Melocdctus- 
15 E. repnraca’ntuvs (Link et Otto, diss. p. 13. t. 14. f. 2) 
plant globose, glaucescent, impressed on the top, not tubereled ; 
ribs 15, acute; prickles 10 in each fascicle, spreading : the 
central ones the largest. h. D.S. Native of Brazil, in the 
province of Rio Grande. The plant is hardly an inch high, an 
hardly the same in thickness. Prickles canescent, hardly ® 
inch long. Flowers unknown. 
Ash-coloured-spined Hedgehog-thistle. 
4 foot. ee 
16 E. recu’rvus (D, C. prod. 3. p. 462.) plant roundish, wit 
15 angles; prickles broad, very numerous. h. D. S. Na ae 
of Mexico. Cactus recirvus, Mill. dict. ed. §. no. 3. Gaot 
nóbilis, Lin. mant. 243. Willd. spec. 2. p. 939. Cáctus multan 
gulàris, Voigt. ex Steud. Prickles of two forms, outer ones €*- 
panded, central ones long, brown and recurved at the apex. 
Recurved-spined Hedgehog-thistle. Clt. 1796. Pl. 1 oe 
17 E. inro'rtus (D. C. 1. c.) plant oblong, with 13-16 angles: 
angles twisted like a spire at the apex; prickles middle-si7-" 
rather incurved. h.D.S. Native of Antigua. Cáctus ! 
tortus, Mill. dict. ed. 8. no. 2. Haw. syn. p. 174. 
Clt, 1825.- Pl. $ 
