CRO 
COR 
upwards of six inches across, and have 
the sepals and petals thin, and neai- 
ly transparent; the lip appears to 
be composed as it were. of two cups, 
into the lower of which is distilled by 
drops, from a pair of ivory-looking horns 
which proceed from the upper one, a 
clear, tasteless fluid, the economy of 
which is not understood. All the spe¬ 
cies delight in a high and moist atmo¬ 
sphere, and may be grown either in pots 
or baskets filled with fibrous peat and 
moss, allowing the base of the bulbs to 
be at least two inches above the rim, on 
account of the downward position ot the 
flower scape. 
CORYDALIS (De Candolle.) Nat. 
Or. Pap) aver a,cea. A handsome genus 
of hardy tuberous-rooted, herbaceous, 
and annual plants; their flowers are 
showy, and of very many shades of co¬ 
lour ; almost any soil, so that the situa¬ 
tion is open, will do lor them ; the per¬ 
ennial kinds may be increased by division 
of the tubers about every three years; 
the annual species require to be sown 
in March where they are to remain. Of 
the first mentioned division of the genus 
the following are well worth growing, 
bracteata, bulbosa, caucasicct , longiflora, 
Marshalliana, nobilis , and tuberosa albi- 
fiora ; of the annuals, perhaps the most 
preferable are acaidis, brevijlora, glauca , 
and impatiens. 
COSMELIA (R. Brown.) Nat. On 
Ppacridea. The only species, C. rubra, 
is a beautiful, dwarf, greenhouse plant, 
with bright red flowers resembling those 
of an Epacris, but larger and more 
swollen in the middle of the tube. It 
delights in sandy peat, to have plenty of 
air, and is improved by frequent stop¬ 
ping while young. 
COWANIA (Don.) Nat. Ord. Ro¬ 
sacea. C. plicata, the only species, is one 
worth far more attention than it has hi¬ 
therto received; its flowers are large 
and handsome, resembling those of a 
rose; they are bright red, and, in addi¬ 
tion, the plant is of robust character, 
nearly hardy, requiring only to be pro¬ 
tected from severe frost. It delights in 
peat and turfy loam, but is tardy of~pro- 
pagation. 
CRASSULA (Linn.) Nat. Order 
Crassulacea. Succulent plants, some ot 
them highly ornamental, and all remark¬ 
able for their thick fleshy leaves or oddly 
contorted stems ; they grow freely in 
loam and lime rubbish, the latter perhaps 
being essential to preserve them from ac¬ 
cumulated moisture of which they are very 
impatient, and consequently the pots 
should be well drained; a light airy shell 
in the greenhouse is the best place for 
them. Among the most interesting may 
be mentioned albijlora, bracteata major, 
coccinetla, diffusa, glomerata, imbricafa, 
linguafolia, obit qua, pellucida, pulchella, 
retrofiexa, rosularis, subulata, and fo¬ 
ment os a. 
CRESSA (Linn.) . Nat. Or. Convol- 
vulacea. A curious little annual, almost 
lost to our collections, but certainly de¬ 
serving to be preserved; it grows best 
in very light rich loam, and does not le- 
quire nursing. 
CRINUM (Linn.) Nat. Or. Ama- 
ryllidacea. This genus is composed, ot 
noble bulbous-rooted plants, growing 
from a foot and a halt to five feet in 
height; their flowers are proportionality 
large, produced freely in umbclls, aie 
richly scented and of pleasing colours. 
To grow them well they should be potted 
in rich loam full of fibrous matter, and, 
in the early part of the growing season, 
should have the benefit of a model ate 
bottom heat, with abundance of .water 
every day, and an additional soaking ol 
liquid manure about once a week; in 
winter, of course, this must be disconti¬ 
nued, and the plants placed where they 
may receive all the light possible, .111 
order to mature their new parts, and in¬ 
duce them to flower freely in the follow¬ 
ing season. The following are well 
worth a place in every collection, ama- 
bile, amanum lave, augustum, Goweni, 
Herbertii, humile, insigne, Laticei, longi- 
jiorum, purpurascens, and venustum. 
CROCUS (Linn.) Nat. Or. Iridacea. 
Everv one knows the value of these 
pretty dwarf harbingers of. spring, and 
their cultivation being so simple leaves 
us only room to remark, that it is a 
mistake to place them in poor ground; 
no plants cultivated in our gardens de- 
