AN ENCYCLOP/EDIA 
P 2 
888 A- 
de 
OF HORTICULTURE. 
Colocasia— continued. 
C. esculenta (edible).* Л. whitish ; spadix shorter than the ovate- 
lanceolate sj кел l. peltate-cordate. A. 2ft. Sandwich Islands, 
&c., 1739. This fine species has been used with great success in 
sub-tropical gardening in the midland and southern counties, For 
this purpose, it should be planted out early in June, in thoroughly 
drained, warm, light and rich soil In very hot weather, a 
est supply of water must be a red, and occasionally 
iquid manure, On the approach of frost, all the leaves, except 
the central one, must be cut down to within 2in. of the crown. A 
few days-after this operation, the tubers should be taken up 
exposed fora few hours to the air, to become dry, and then stor 
away for the winter in the greenhouse, or any other frost and 
damp proof situation. SYN. Caladium esculentum. See Fig. 502. 
CG. indica (Indian)* fl. brownish ; spadices axillary. 1. ovate, bifid 
at base, cory ig Plant caulescent, sub-erect. д. 5ft. Sandwich 
Islands, &c., 1824. SYN. Arum indicum. 
C. nymphzifolia (N. hzea-leaved). jl., spadix longer than the 
white cylindrical spathe, sagiitate аб the end. J, peltate-cordate, 
sagittate. Plant stemless. India, 1800. 
©. odorata (fragrant).* jl. very fragrant; spadix as jong. as the 
white cymbiform spathe. 
long. Plant caulescent. 
l. cordate, with rounded lobes, 5%. 
Реги, 1818. See Fig. 503 
Fic. 503. COLOCASIA ODORATA. 
COLOGANIA (named after a family of the name of 
Cologan, who resided at Port Orotava, in Teneriffe, and 
from whom men of science visiting that island experienced 
the greatest hospitality. ORD. Legwminose. Stove pro- 
cumbent or twining shrubs, beset with retrograde hairs. 
Flowers solitary, axillary, pedunculate, or in short racemes. 
Leaves pinnately trifoliolate, rarely one or five-foliolate. 
For culture, see Clitoria. 
C. biloba (two-lobed). Л. violet, racemose. l ternate, clothed 
with adpressed hairs. h. 20ft. Summer and autumn. Mexico. 
Conservatory. SYN. Glycine biloba. (В. R. 1418.) 
C. Broussonetii (Broussonet’s). fi. violet, twin, shortly pedicel- 
late; calyx villous, rather five-cleft, 7, leaflets ovate-oblong, 
mucronate, rather strigose on both surfaces, paler beneat 
Mexico, 1 
Other species quoted as being in cultivation are : angustifolia 
and pulchella. 
COLQUHOUNIA (named after Sir Robert Colquhoun, 
Bart., at one time resident at Kumaon). ORD. Labiate. 
Elegant and curious evergreen, twining or scandent, 
usually tomentose, not pilose, shrubs; well fitted for 
ornamenting rafters in greenhouses or conservatories. 
Whorls loose, axillary, or approximating into a terminal 
spike; bracts minute; corolla bilabiate, with an exserted 
ineurved tube, and a dilated throat, naked inside. Leaves 
rather large, crenate; those of the upper parts of the 
branches, near the inflorescence, reduced to small bracts. 
Colquhounia—continued. 
A light rich soil, or one composed of equal parts loam, 
sand, and leaf mould, suits them well. Young cuttings 
will root readily, in the same kind of compost, under 
handlights, in summer. і 
C. coccinea (scarlet)* fl., corolla scarlet, twice the 1 hof the 
calyx; whorls few-flowered, approximating into a spike, which 
is leafy at the base. September. l. nearly glabrous, roughish, 
ovate, acuminated, дїп. to din, long. Nepaul. (В. M. 4514.) 
C. tomentosa (tomentose)* fl. brilliant orange-red, in crowded 
whorls. J. densely covered with greyish tomentum. Nepaul A 
tall branching shrub. It may be grown out of doors in warm 
situations, in summer. (R. H. 1873, 131.) 
COLT'S FOOT. See Tussilago. 
COLUBRINA (from coluber, a snake, in allusion to 
the twisted filaments of the stamens). ORD. Rhamnee. 
Stove or greenhouse shrubs. Flowers in axillary, short, 
crowded cymes, or in fascicles. Leaves alternate, quite 
entire or crenulated, usually pubescent. The species do 
not possess much ornamental value, and hence are rarely 
seen in gardens. 
COLUMBINE. See Aquilegia. 
COLUMELLA. A synonym of Pi- 
sonia (which see). 
COLUMELLIA (named in honour 
of L. Junius Moderatus Columella, a 
native of Cadiz, in Spain, author of one 
of the most valuable works on Roman 
agriculture; he was born about the be- 
ginning of the Christian era). SYN. 
Ulusia. The only genus of ORD. Colwmel- 
liacew. It contains only two species, 
one of which is not yet introduced to 
cultivation. С. oblonga is a greenhouse 
evergreen shrub. It thrives in a mixture 
of loam, peat, leaf soil, and sand; and 
half-ripened young cuttings will strike 
readily in the same compost, under a 
hand glass, with a gentle heat. | y 
C. oblo: terminal, 
on + er ч ae өү > mv with а 
five-loLed concave equal limb; corymibs leafy. 
{. oblong, veiny, toothed at top, : 
at the base, shining and green above, but 
silky and glaucous beneath, lin, to 2in. long. 
Branchlets clothed with silky down, com- 
pressed between the inte 
ane of Peru and Ecuador, 
evergreen shrubs or small trees, containing 
genus—Colwmellia. Flowers with a fve-lobed — 
corolla, bearing in its short tube two stamens. Le 
Opposite, serrate, exstipulate. fs 
COLUMN, or COLUMNA. et 
stamens and styles into a solid central body 
аз in 
orchids, i 
COLUMNAR. Formed like a column. 
COLUMNEA (named after Fabius Columna, or, more 
correctly, Fabio Colonna, an Italian of noble family ; author 
of “Minus Cognitarum Stirpum Eephrasis,” Rome, 1616, 
and “ Phytobasanos,” 1 vol., 4to, Naples, 1592). Овь. 
Gesneracem. A genus of stove evergreens. Peduncles —— 
axillary, solitary, or crowded; corolla tubular, straightish, - 
gibbous behind at the base, ringent; upper lip erect, — 
arched ; lower one trifid, spreading. Leaves decussat 
Opposite, thickish, hairy or pubescent, somewhat ser- 
rated. Stems flexile, erect, or scandent. For culture, see 
ZEschynanthus. 
©. а; 
colour ; cal yel 
r; 
This beautiful | rare species 
orange)* ft. of the deepest and richest orange- 
vet "d elem Jane. New G а 11. 
it jon al of nearly rotten wood, v 
SA Rate gs Sponge, and ive back 
absorb water | 
plant, (Е. d. S. 552) - s 
* 
