CACTEE. 
k. D.S. Native of Mexico. Cereus oxypétalus, D. C. prod. 
3. p. 470. Flowers 4 inches long, reddish brown on the out- 
side, and white inside. Berry red, oblong, ribbed, attenuated at 
both ends. Branches like those of Æ. phyllanthoides. 
Sharp-petalled Epiphyllum. Shrub 2 to 3 feet. 
T E. ara`rum (Haw. suppl. p. 84.) corolla small, greenish 
white; tube very short; berry blackish. h. D.S. Native of 
Jamaica, on the trunks of trees. Céreus dlatus, D. C. prod. 3. 
p. 470. Cactus alatus, Swartz. fl. ind. occ. 878. Link. enum. 
2. p. 24. exclusive of the D. C. syn. 
Winged Epiphyllum. Fl. June. Clt. 1810. Sh. 1 to 2 ft. 
8 E. Axerma’nnt (Haw. in phil. mag. Aug. 1829. p. 108.) 
corolla large, rather ringent, assurgent before expansion, and 
acute at the apex, nearly 4 times longer than the tube; stigmas 
7. h-D.S. Native of Mexico, from whence it was brought 
by a Mr. Akermann. Cactus Akermanni, Hortul. Flowers 
large, scarlet. Petals keeled, a little recurved at the apex. 
Branches flat, thin, seldom with any spines in the notches except 
when young. 
Akermann’s Epiphyllum. Fl. June, July. Cit. 1829. Shrub 
1 to 3 feet. 
9 E. crispa‘tum (Haw. in phil. mag. Feb. 1830. p. 109.) 
branches cuneate-oblong, waved; margins appearing curled 
from large crenatures. h.D.S. Native of Brazil. Flowers 
not seen. 
Curled-branched Epiphyllum. Clt. 1829. Shrub 1 to 2 ft. 
10 E. rrunca‘rum (Haw. suppl. p. 85. et in phil. mag. vol. 4. 
P: 188.) corolla reflexed, ringent ; tube very short; branchlets 
dichotomous, truncate at the apex. h.D.S. Native of South 
America. Cáctus truncatus, Link. enum. 2. p. 24. Ker, bot. 
reg. 696. Sims, bot. mag. 2526. Hook. exot. fl. t. 20. Lodd. 
bot. cab. 1207. Céreus truncatus, D. C. prod. 3. p. 470. Flowers 
rising from the truncate tops of the branches, red or rose-co- 
loured, hardly 3 inches long, oblique ; stamens white, ascending ; 
stigmas 7, closely conniving. Joints of stem compressed. This 
species appears to be an intermediate plant joining Lpiphyllum 
with Opuntia. It is a very elegant plant when in blossom. 
i Truncate Epiphyllum. FI. July, Sept. Clt. 1818.. Shrub 
Oot. 
_ Cult. The species of Epiphillum are extremely showy when 
in flower. Their culture and propagation are the same as that 
recommended for the last genus. They are known at first from 
all the other genera of this order by their flat elongated branches. 
: VI. OPU’NTIA (some species grows plentiful near Opus, a 
city of Locris). Tourn. inst. 239. t. 122. Mill. dict. Haw. syn. 
187. D. C. prod. 3. p. 471.—Tina, Dill. hort. elth. f. 379. and 
383.—Cactus Opantia, Willd. enum. suppl. p. 33. D. C. cat. 
hort, monsp. Link, enum. 2. p. 23." 
Lin. syst. Icosdéndria, Monogynia. Sepals numerous, leaf- 
formed, adnate to the ovarium : upper ones flat and short : inner 
ones petal-formed, obovate, rosaceous, expanded : without any 
tube above the ovarium. Stamens numerous, shorter than the 
petals. Style cylindrical, constricted at the base; stigmas many, 
thick, erect. Berry ovate, umbilicate at the apex, tubercled, and 
usually bearing spines. Embryo rather spiral, nearly terete. 
Cotyledons semi-terete (ex Geertn. fruct. 2. t. 138.), after germi- 
nation becoming foliaceous, and flat, but thickish. (see Dill. elth. 
f 381.) Plumule small.—Shrubs, with the trunk at length be- 
coming terete, but having the young branches very rarely cylin- 
drical, but usually more or less compressed, and jointed ; joints 
ovate or oblong, bearing fascicles of spines or bristles, which are 
disposed in a quincuncial or spiral order. Leaves nearly the 
form of those of some species of Sedum, but fall off very soon, 
one under each fascicle of spines or bristles on the branches 
when young. Flowers rising from the fascicles of spines or 
V. Epteuytium. 
VI. Opuntia. 171 
bristles, or from the edges of the joints, either yellow or reddish. 
Stamens rather irritable to the touch. 
Secr. I. Cytiypra‘cem (from cylindraceus, like a roller; in 
allusion to the cylindrical branches). D. C. prod. 3. p. 471. 
Stems cylindrical, neither jointed, nor furrowed, but bearing areo- 
late convex tubercles, and fascicles of prickles. The species of 
this section are not sufficiently known, or probably they would 
have constituted an intermediate genus between Céreus and 
Optntia. 
1 O. rosea (D. C. diss. t. 15.) plant erect, rose-coloured ; 
stems and branches tubercular; tubercles oblong, depressed, 
disposed in spiral series, bearing each at the apex a caducous 
leaf, and a fascicle of straight white prickles; flowers nearly ro- 
tate, usually by fours at the tops of the branches. h. D. S. 
Native of Mexico. Cactus subquadriflorus, Moc. et Sesse, fl. 
mex. icon. ined. This is an anomalous species, as from the 
stems it agrees with Céreus tuberculdsus, and from the rotate 
flowers it agrees with Optntia. Flowers flesh-coloured. Fruit 
white. Leaves terete, acute, soon falling off. 
Rose-coloured Indian-fig. Shrub 2 to 3 feet. 
2 O. cytrnprica (D. C. prod. 3. p. 471.) plant erect; stem 
and branches tubercular, areolate ; tubercles rhomboid, bearing 
each a caducous leaf, and a few white prickles. h.D.S. Na- 
tive of Peru. Flowers unknown. Cactus cylindricus, Lam. 
dict. 1. p. 539. but not of Ort. Céreus cylindricus, Haw. syn. 
183. 
Cylindrical-branched Indian-fig. Clt.1799. Sh. 2 to 3 feet. 
3 O.1mprica‘ra (D.C. prod. 3. p. 471.) plant erect, terete, 
not furrowed, but superficially ribbed, and rather lobe-formed, 
somewhat imbricately tesselated in various ways. h. D. S. 
Native country and flowers unknown. Céreus imbricatus, Haw. 
rev. 70. Allied to O. cylindrica, but more robust according to 
Haworth, but according to the Prince de Salm-Dyck it is slen- 
derer. 
Imbricate-tesseled Indian-fig. Clt. 1820. Shrub 2 to 3 feet. 
4 O. stare LIæ (D. C. mem. cact. in mem. mus. 17. p. 117.) 
plant branched, irregularly tufted, deep green; joints ovate or 
oblong; areolz small, tomentose in the axils of the tubercles ; 
prickles 5-6 in a fascicle, stiff, straw-coloured, setaceous, when 
old the epidermis or coat separates from them. h.D.S. Na- 
tive of Mexico. Coulter, no. 38. Stem hardly an inch high, 
Habit almost of Stapélia cespitdsa, but which is without 
prickles. 
Stapelia-like Indian-fig. Clt. 1830. Shrub 1 to 2 inches. 
5 O. exuvia‘ra (D. C. l. c. p. 118.) plant branched, erect, 
nearly terete; branches furnished with compressed tubercles, 
and irregular crests, so as to make them nearly pentagonal ; 
areole orbicular, velvety at the axils of the tubercles; prickles 
6-12 in a fascicle, stiff, straight, when old the epidermis sepa- 
rates from them. h.D.S. Native of Mexico. Coulter, no. 
18. Cactus tunicdtus, Hort. berol. ex Salm-Dyck. Trunk a 
foot high, and 18 inches thick. 
Var. 3, angústior (D. C. 1. ¢.) trunk slenderer; prickles 
fewer; areole narrower. Coulter, no. 17. 
Var. y, spinosior (D. C. 1. c.) stem dwarf; prickles longer and 
more numerous, and more spine-like. 
Stripped Indian-fig. Clt. 1830. Shrub 1 foot. 
6 O. peci riens (D.C. l. c.) plant erect, ei ro 
branches cylindrical, attenuated at the base; tuberè : 
spirally disposed; areolæ small; prickles of two forms, the 
lower one large and spreadingly deflexed : the rest, 3-4 in num- 
ber, bristle-formed and radiating. h. D. S. Native of Mexico. 
Coulter, no. 20. Leaves small, ovate-oblong, deciduous. Large 
prickle an inch long, whenold the epidermis separates from 
it. The rest 1-2 lines long. Compare it with O. cylindrica. 
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