NOTES ON FLOWERS. 
277 
pillars ; requires rest in winter ; propagated 
by division of the roots. 
Vanda Lowei, Lindley (Mr. Low's Vanda). 
— Orchidacese § Vandere - Sarcanthidae. — A 
magnificent epiphytal plant, with distichous, 
stiff, leathery, strap-shaped leaves, and throw- 
ing out large fleshy roots along the branches. 
The flowers are borne in racemes, which are 
pendulous and extremely long — often from 
eight to twelve feet — and covered with coarse 
very scabrous hairs : the blossoms are about 
three inches in diameter, and grow about five 
inches apart ; they are pale lemon coloured, 
becoming deeper yellow with age, and are 
barred and blotched with bands and spots of 
the richest cinnamon, the lip shaded with 
cinnamon and purple ; the sepals are hairy on 
the outside. A native of Borneo, growing on 
trees on the banks of rivers, thick forests, and 
other humid places. Introduced in 1847. 
Not yet flowered. Culture. — Requires a 
hot moist stove ; to be placed on a block, or 
in an open basket, among moss and turfy 
peat ; propagated by division of the plant. (128) 
Cereus grandiflorus Maynardi, Paxton 
(Lady Maynard's Cereus). — Cactacese § Ce- 
reidas. — A hybrid cactus, with trailing angu- 
lar succulent stems, and bearing large flowers 
of a uniform orange-red colour ; the outer 
segments are long and narrow, the inner ones 
somewhat broader ; the flowers open in the 
evening, and continue expanded about three 
days ; they are produced freely. The plant 
is a hybrid, raised, in 1837, from C. speciosis- 
simus, fertilised by C. grandiflorus; and 
owes it origin to Mr. Kenny, gardener to 
Viscount Maynard, at Easton Lodge, in Essex. 
The wood and spines are intermediate between 
the two parents, but, except in colour, the 
blossoms most resemble C. grandiflorus. 
Culture. — Requires a stove, and to be trained 
against a wall or trellis ; loam and lime rub- 
bish; propagated by cuttings. (129) 
Ruellia Purdieaxa, Hooker (Mr. Purdie's 
Ruellia). — Acanthaceaa § Echmatacanthi- 
Ruellidas. — A moderate sized suffruticose 
plant, of erect habit, with glabrous branches, 
large, opposite, ovate-acuminate leaves, and 
terminal flowers growing in pairs, with a pair 
of large bracteas at their base ; the flowers 
have a long curved tube gradually enlarging 
upwards, and divided into five nearly equal, 
and spreading, waved segments ; the colour is a 
fine deep crimson-lilac. A native of South 
America (?) Introduced in 1846. Flowers at 
various periods of the year, and when quite 
young. Culture. — Requires a stove ; sandy 
loam and peat ; propagated by cuttings placed 
in a hotbed and sandy soil. (^30) 
Marsdenia maculata, Hooker (spotted- 
leaved Marsdenia). — Asclepiadaceas § Sta- 
pelia?. — A strong growing climbing plant, 
nearly glabrous in every part, with thick 
stems, and very large, opposite, broadly-ellip- 
tical leaves, cordate at the base, and marked 
over the surface with pale yellowish spots of 
various sizes. The flowers are numerous, 
collected into dense hemispherical, almost 
sessile umbels, at the axils ; they are rather 
fleshy, and of a dark purplish colour, greenish 
when young, so that the umbels have a mot- 
tled appearance. A native of the plain of 
Santa Martha, New Grenada. Introduced in 
1840 (?) Flowers in June and July. Culture. 
— Requires a stove ; rich loamy soil, and' 
plenty of root room ; propagated by cuttings 
in sand, in a hotbed. (131) 
Calceolaria amplexicaulis, Humboldt, 
fyc. (clasping -leaved Slipperwort). — Serophu- 
lariacese § Antirrhinideas - Calceolareas. — A 
small shrubby plant growing nearly two feet 
high, with cordate-ovate, acuminated, pubes- 
cent leaves, and terminal upright peduncles, 
bearing compound corymbs of good-sized deep 
yellow spotless flowers ; the flowers are 
formed of two unequal lips, the upper one 
helmet-shaped, compressed, the lower one 
nearly the form of a horse's hoof, both being 
pressed together so as to close the mouth or 
throat. A native of Peru and Colombia. 
Introduced in 1846. Flowers in the summer 
months. Culture. — A greenhouse or half- 
hardy plant ; light loamy soil ; propagated by 
cuttings planted in slight heat. (132) 
Ipomgea muricata, Cavanilles (fine-leaved 
Ipomoea). — Convolvulaceae § Convolvuleas. — 
A handsome slender growing plant, with 
oblong fusiform tubers, and annual stems vary- 
ing much in length, and not twining. The 
leaves, which have often been described as a 
whorl of narrow simple leaves, are sessile and 
multifid, divided into five or more very narrow 
spreading segments. The flowers grow in 
the axils, on very short peduncles, and have 
the lower part of the calyx muricated with 
small sharp tubercles ; they are small, but of 
a delicate full lilac hue, inclining to rose. A 
native of Mexico and Colombia ; and found 
in open grassy mountains of the Nivada de 
Santa Martha. Introduced in 1845. Flowers 
in September and October. It is also called 
Ipomoea armata (Rcemer and Schultes) ; Con- 
vohidus capillaceus (Humboldt, &c.) ; and 
Cant a tuberoxa^Rodmer). Culture. — Requires 
a warm greenhouse ; peat and loam ; propa- 
gated by cuttings, seeds, or division of the old 
tubers. (133) 
Echites Franciscea, Alph. de Candolle 
(River Francisco Echites), — Apocynaceas § 
"\Yrightea5. — A handsome hothouse climber, 
the stems, leaves, and flower stalks of which 
are clothed with a sort of velvety hairiness, 
and bear rather large opposite, ovate-acute 
leaves, and racemes of eight or ten larae 
