160 CACTEZ. 
red, a little longer than the tubercles. Haworth’s plant appears 
to be different from that of De Candolle. 
Twin-spined Mammillaria. Clt. 1823. Shrub 4 foot. 
38 M. vivi'para (Haw. suppl. p. 72.) plant multiple; offsets 
nearly globose; tubercles or mamme cylindrically ovate, bearded, 
marked by a proliferous furrow above; flowers central, large, 
exserted. h.D.F. Native of Louisiana, on high hills about 
the river Missouri. Cactus viviparus, Nutt. gen. amer. 1. p. 
295. Spreng. syst. 2. p. 494. exclusive of Haw. syn. Each 
tuft of the plant in its native place of growth is 2 or 3 feet in 
diameter. Flowers deep red, almost like those of Cereus flagel- 
l“formis, Outer lobes of calyx ciliated. Berries about the size 
of grapes, fusiform, greenish. 
Viviparous Mammillaria. F]. June, Aug. Clt. 1811. Pl. 2 ft, 
39 M. ctomera'ra (D. C. prod. 3. p. 459.) plant tufted ; 
tubercles or mamme clavate, glaucous, tomentose, furnished with 
a stellate bunch of spines each at the apex. k.D. S. Native 
of St. Domingo, in marshes. Plum. ed. Burm. 201. f. 1. Cactus 
glomeratus, Lam. dict. 1. p. 257. Spreng. syst. 2. p. 494, ex- 
clusive of the synonyme of Haworth. Flowers red. 
Glomerate Mammillaria. Shrub 4 foot. 
40 M. rusrrra (D. C. diss. t. 2. f. 1.) plant multiple, round- 
ish ; axils a little bearded ; tubercles or mammæ ovate, bearing 
radiating spines at the apex, outer spines hair-formed and white, 
inner ones stiff and pale yellow, pubescent when examined under 
a lens. h. D.S. Native of South America. Mill. dict. no. 6. 
Cactus pusillus, D. C. cat. hort. monsp. p. 185.—Pluk. phyt. t. 
29, f. 2.? Plant very small, rather glaucescent, hardly 2 inches 
high. The tubercles or mammæ are disposed in 5 or 7 series, 
which wind to the left. Flowers large, white or pale red, with 
the backs of the petals reddish. 
Small Mammillaria. Fl. June, Aug. Clt. 1820. Pl. 4 foot. 
41 M. steLLa ta (Haw. in phil. mag. Feb. 1830.) plant irre- 
gularly tufted, beset with radiating fascicles of white pubescent 
spines; the lower ones of which are hair-formed, with a few of 
the upper ones much stronger and more horizontal, and straw- 
coloured at the apex. b. D. S. Native of South America. 
Cáctus stellàris, Willd. enum. p. 30. M. stellàris, Haw. suppl. 
p- 72. Lodd. bot. cab. 79. but not M. pusilla, D. C. 
Starry Mammillaria. Fl. June, Aug. Clt. 1815. Pl. 4 foot. 
42 M. Mıssourrr'nsıs (Sweet, hort. brit. p. 171.) mammæ or 
tubercles ovate, terete, bearded ; flowers hardly exserted ; berries 
scarlet, about equal with the mammæ. h. D.F. Native of 
Louisiana, on the high mountains about the Missouri. Cactus 
mammillaris, Nutt. gen. amer. 1. p. 295. Flowers white. Ber- 
ries scarlet. This is a much smaller plant than M. simplex, to 
which it is nearly allied. 
Missouri Mammillaria, 
4 to 4 foot. 
Fl. June, Aug. Clt. 1818. Shrub 
+ Species not sufficiently known. 
43 M. Herrcreres (D. C. diss. t. 5.) plant simple, obovate, 
glabrous; tubercles or mammæ disposed in numerous, nearly 
vertical, regularly spiral series, bearing spreading, straight, 
spines at the apex. h. D. S. Native of Mexico. Cactus 
Helicteres, Moc. et Sesse, fl. mex. icon. ined. Plant 3-4 
inches high. Flowers rose-coloured, a little longer than the 
mamme. 
Screw Mammillaria. Pl. 4 to 4 foot. 
44 M. nu'pa(D. C. prod. 8. p. 460.) plant simple, cylindri- 
cal, ascending, glabrous ; tubercles or mamme unarmed. h.D. 
S. Native of Mexico. Cactus niidus, Moc. et Sesse, fl. mex. 
icon. ined. Flowers rose-coloured. 
Naked Mammillaria, Pl. 4 to 4 foot. 
$ The folloning species are hardly knonn unless by name ; 
I. MAMMILLARIA. 
II. MeLocacrTus. 
some of these names may, however, be referrible to those described 
above. 
1 M. mitis, Mill. dict. 2 M. cónica, Haw. suppl. 3 M, 
cæspitòsa, Hort. berol. 4 M. canéscens, Hort. berol. 5 M, 
angulàris, Hort. berol. 6 M. chrysántha, Hort. berol. 7 M, 
auràta, Hort. berol. 8 M. fuscàta, Hort. berol. 9 M. atrata, 
Hort. berol. 
|| The following species were raised in the gardens in 1827 
from seeds brought from Chili by Dr. Gillies, but have not yet 
been described. The species we have referred to this genus only 
from their seedling state, nithout any knonledge of them mhen 
full grown. The names are under the genus Cactus in Gillies's 
MSS. 
1 M. spindsa, Gill. 2 M. quadrata, Gill. 3 M. caudata, 
Gill. 4 M. coccinea, Gill. 5 M. solitària, Gill. 
Cult. Mammillaria is a genus of small singular grotesque 
succulent plants. A mixture of sand, loam, and peat, or loam 
mixed with brick rubbish, is a good soil for them. The pots in 
which the species are grown should be as small as the plants will 
allow, and they shouid be well drained with sherds; they re- 
quire very little water. The pots should be placed on shelves 
erected for the purpose in a stove, should there be no house for 
the purpose of growing succulent plants, called a dry stove 
The plants are increased by offsets. 
II. MELOCA'CTUS (from pndov, melon, a melon, and Kar- 
roc, cactos, a name applied to a spiny plant by ‘Theophrastus; 
the plants are in the form of a melon, and the angles are beset 
with tufts of spines). C. Bauh. pin. 384, D.C. diss. 1826. 
Link et Otto, diss. 1827. p. 8. D.C. prod. 3. p. 460.—Cactus, 
Haw. syn. 172. exclusive of some species. Cactus, sect. B, 
Link, enum. 2. p. 21. : 
Lin. syst. Icosdéndria, Monogynia. Tube of calyx adhering 
to the ovarium ; lobes 5-6, petaloid, crowning the young fruit. 
Petals 5-6, united into a long cylindrical tube with the sepals. 
Stamens filiform, disposed in many series. Style filiform; stig- 
mas 5, radiating. Berry smooth, crowned by the dry lobes of 
the corolla and calyx. Seeds imbedded in the pulp. Cotyle- 
dons small. Plumule large, nearly globose (D. C. Organogt- 
t. 48. f. 3.) Fleshy globose simple roundish shrubs, w! 
deep furrows, alternating with vertical ribs, which are orna- 
mented with confluent tubercles, each tubercle furnished w! 
a starry fascicle of prickles or spines. Spadix or flowering hea 
terminal, cylindrical, composed of mammæform, much crowdè 
tomentose or setiferous tubercles. Flowers immersed in the w00 
of the head under its apex. 
1 M. communis (Link et Otto, l. c. diss. p. 8. t. 11. D. 2 
diss. t. 6.) plant ovate-roundish, deep green, with 11 oF l: 
angles ; ribs straight ; spines strong, pale brown, unequal, 9 m 
each fascicle: lower one the longest: middle one erect. ĉ' 
D. S. Native of the West India Islands, in salt marshy 
places near the sea; and probably on the main land of som 
America. Cactus Melocáctus, Lin. spec. 666. D. C. P' 
grass. t. 112. Cáctus Melocactus, and Č. coronatus, Lam. dict 
1. p. 537.—Bradl. suce. t. 32. Ribs 12-18. Flowers tubulah 
red. Fruit red, nearly like those of Mammillaria, but large 
oblong, and deciduous, protruding from the wool on the head. 
Var. B, obléngus (Link et Otto, 1. c.) plant smaller ; priekls® 
weaker, and more red. Stem 6 inches high, and 34 thick- 
_ Var. y, macrocéphalus (Link et Otto, 1. c.) plant thicker, a 
inches high, and 9 inches broad. c 
Common Melon-thistle, or Turk’s-cap. Fl. July, Aug. k 
1688. Shrub 1 foot. with 
2 M. Lama’rcxu; plant ovate, flattish at the base, “: 
14-20 angles at the top, which are rather oblique and blunts 
