360 THE DICTIONARY 
OF GARDENING, 
Colchicum —continued. 
| N : 
A OMM 
T 
M ta 
Fic. 499. CoLcHIcuM SPECIOSUM. 
COLDENIA (named after Conwallades Colden, a North 
American botanist, who discovered numerous new plants; 
these are published in the Upsal Acts for 1743). Овр. 
Boraginacem. А genus containing about ten species of 
branched prostrate herbaceous plants, natives of both the 
Old and New Worlds. Perhaps the only one in culti- 
vation is C. procwmbens—an ornamental stove trailing 
annual. Seed should be sown in March, in a hotbed, and 
the seedlings planted out singly in pots when large enough 
а handle. It requires a light, rich soil. 
_ tary, sessile ; conis SER ^ A Wis MANT ME 
July. /. alternate, cuneiform, 
“ктү. 
Sir G. Lowry Cole, 
А ria ласер. Stove 
sub-campan , five-toothed ; 
limb divided into five spreading 
fleshy, indehiscent. Leaves impari- 
on: S RAP A synonym of C. undulata, 
(abundant-flowering).* ү rish-white. 
lior Rem ME | wood. де =з 
"BRI IOKIA (named after Henry d e 
-RS., A. &e., an accomplis} P а 
Colebrookia-— continued. 
a compost of one part peat and two parts loam, with a 
small quantity of sand added, to keep the whole porous. 
Cuttings of half-ripened shoots, made in April or May 
will root in sand, under a bell glass. 
tifolia (opposite-leaved). Branches, leaves, and spikes 
C. opposi 
opposite. Л. 5%. to 4ft. Nepaul, 1820. (S. E. B. 115.) 
Branches, leaves and 
С. ternifolia (three-leafleted-leaved). 
spikes three in à whorl. Leaves more tomentose, and on shorter 
tioles, than in the first species, and spikelets more dense, 
dia, 1823. 
COLEONEMA (from koleos, a sheath, and nema, a 
filament; the filaments are fixed into sheath-like recesses 
of the petals). ORD. Rutacew. Very ornamental small 
Heath-like greenhouse shrubs, from the Cape of Good. 
Hope. Flowers white, axillary towards the top of the 
branches, solitary, on short peduncles. Leaves short, 
linear, scattered, very acute, beset with glandular dots. 
There are four species, all natives of Sonth-west Africa. 
For culture, see Diosma, 
C. album (white). /. white, small. Autumn and winter. l sub- 
erect, linear-lanceolate, channelled above, with a straight, pungent 
mucro. А. lft. to 2ft. A small erect, nearly glabrous, shrub. 
Aspalathus-like). Jf. white. Autumn, Ё 
aspalathoides 
— keeled and sub-triangular, with a recurved mucro., A. біп. 
to 3ft. 
juniperinum (Juniper-like) Д. white. Autumn. l narrow - : 
linear, with a short, straight mucro, concave above, convex under _ 
neath, shining. A. 1ft. to 2ft. d 
C. pulchrum (beautiful) /. large, red. Autumn. 1. sp 
recurved, linear, with a gom кыне, mucro, the d 
margin serrulate. л. 2ft. to 4ft. (B. M. 3340.) 
COLEOPTERA. See Beetles. 
COLEUS (from koleos, a sheath; in allusion to the ——— 
filaments being connected, and forming a tube at the base, 
which sheathes the style) Orp. Labiate. А genns of 
stove herbs, annual or perennial at the base, rarely 
cose. Whorls usually six-flowered, but often many-flowered, 
sometimes very dense, and sometimes loose, cyme-formed. 
The monadelphous stamens distinguish this genus from all 
others of the order. The foliage of the hybrid varieties 
and sports of Coleus are unsurpassed for beauty of colour; 
and, whether grown as large or small plants, they are 
extremely usefnl for decorative purposes. Their culture 
very simple, but unless a minimum temperature of 55deg. 
is maintained, they cannot be wintered safely. Where such 
conditions do not obtain, it is better to purchase plants in 
spring, grow them on for the season, and then throw th 
away. 
Fa 
doses of liquid manure when established, especially during 
hot weather, as the plants then grow very rapidly. Plenty 
of air and light must be afforded in summer, in order 
keep the plants strong and short-jointed. Care must 
be taken that they do not suffer for want of water, 
the lower leaves wil drop off, and thus render them 
sightly. Coleus grown for exhibition should be of globt 
or pyramidal form, with the lower leaves covering 
edge of the pot, so that neither bare stems nor soil 
visible. When grown for ordinary decoration, usi 
plants may be obtained, and the colours in the leaves 
highly developed, by cultivating 
of little corisequence, compared 
planta. 'The flowers of the foliage 
and the spikes, when seen, should be pinched out. 7 
cultivation above recommended also suits the green 
; but, after a few pinchings, to secure bushy 
