COM 
con 
Gesneracece. Curious and beautiful stove 
plants, which may either be grown in 
pots of leaf-mould and peat, or attached 
to billets of wood suspended from the 
roof of the house; they do not require 
much water at any time, and but very 
little indeed through the winter. 
COMBRETUM (Lceefling.) Nat. 
Ord. Combretacees. The large panicles 
of brilliant coloured flowers which these 
species produce, render them desirable 
for covering the pillars or roofs of all 
stoves; they grow well in a mixture of 
peat and loam, and should be pruned 
closely back every winter, as it is on 
the young wood only that flowers are 
borne. 
COMESPERMA (Labillaedieee.) 
Nat. Order Tdolygalacese. Deserving 
species, with handsome purple blossoms, 
easily grown in sandy peat in any good 
greenhouse. 
COMMELINA (Lien.) Nat. Ord. 
Commelinacees. It is only the hardy spe¬ 
cies of these plants that can now be 
considered worth cultivation. C. coelestis 
forms an excellent border plant, its 
flowers are blue of a brighter shade than 
perhaps is to be found elsewhere in the 
whole range of vegetable forms; the 
tubers of this plant should be taken up 
in winter, and indeed receive the treat¬ 
ment of Dalilias, except that they do 
not require to be placed in any elevated 
temperature to induce them to start into 
growth. The annual species should be 
sown in March where they are to remain. 
CONVALLARIA (Linn.) Nat. Or. 
Liliacees. The lily of the valley is an 
esteemed favourite ; it grows best in 
rich loam, but will not refuse to vege¬ 
tate in earth of almost any description. 
A shaded situation, even beneath _ trees 
where few other plants will exist, is one 
in which it delights; potted in tolerably 
good soil for a season previous, this 
plant affords an admired subject for forc¬ 
ing ; treated with a cold frame through 
the early part of the winter, and placed 
in gentle heat about January, it may be 
had in flower through February and 
March. 
CONVOLVULUS (Linn.) Nat Or. 
Convolmdacete. In this genus of climb¬ 
ing plants we have subjects suited to 
the embellishment of stoves, conserva¬ 
tory, or greenhouse, and the open air, 
all beautiful and easy of management, 
producing, in every case, handsome 
highly coloured flowers in the greatest 
profusion. A light rich earth is pre¬ 
ferred by all the species ; the stove and 
greenhouse kinds are mostly bulbous- 
rooted, and after being grown with the 
ordinary management of the plants in 
either structure, are allowed to become 
dormant in autumn, and are kept in that 
state all through the winter : the hardy 
species are of annual duration, and for. 
an early flowering, are raised in heat, 
and planted into their places about May; 
others to bloom later require merely to 
be sown where they are desired to bloom, 
COREOPSIS (Linn.) Nat. Or. Com¬ 
posites. A genus of ornamental hardy 
animals, suitable for the beds or borders 
of the flower-garden; but, as they attain 
a height of five or six feet, it is neces¬ 
sary to keep them either in the centre 
of large beds, or towards the back of 
groups; the treatment they require is 
the simple one of all plants of the same 
character, merely to be sown where they 
are to remain. There are a few tender 
species included in the genus, but they 
are not worth the extra care required in 
their culture. 
CORONILLA (Neckee.) Nat. Or. 
Leguminosce. The greenhouse species 
are very ornamental and worth atten¬ 
tion, because of the early season at 
which their flowers are produced; they 
grow freely in loam and peat, and should 
have an airy situation at all times. C. 
cretica is a pretty dwarf annual of hardy 
character, and, which we have had occa¬ 
sion to remark, is a favourite food of 
the land tortoise. 
CORYANTHES (Hookee.) Nat. 
Or. Orchidacece. Among the many ex¬ 
traordinary forms to be met with in the 
flowers of plants of this class, perhaps 
none excite more astonishment than 
those Of the present genus; they are at 
once large, richly coloured, scented, sin¬ 
gularly formed,' and freely produced; 
they are for the most part brown spotted 
with purple; those of C. macranttici are 
