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CALLISTACHYS. 
nearly a yard, and carries yellow flowers from 
May till August; andit is one of the most showy 
accessions which have, for many years, been 
made to our stock of hardy annuals. A variety 
of it, C. b. atrosanguinea, produces dark blood- 
coloured flowers; and the florets of this variety 
are used by the natives of North America for ex- 
tracting a reddish dye.—Atkinson’s species is a 
hardy annual, with sulphur-coloured flowers, from 
_ Colombia. Drummond’s species is a hardy annual, 
with brown-spotted reddish yellow flowers, from 
North America. The palmate and the roseate 
species are hardy perennials, with respectively 
yellow and red flowers, from North America. 
CALLISTACHYS. A genus of ornamental 
Australian shrubs, of the sophora division of the 
leguminous order. Four species, introduced dur- 
ing the ten years preceding 1825, are straggling 
evergreens, of from three to six feet in height, 
carrying yellow flowers from. June till August. 
The red-flowered species, or crimson callistachys, 
O. linearis, was introduced by seeds in 1840, and 
excited high expectation, but proved to have no 
pretensions to beauty. It is an erect shrub, with 
long, slender, glabrous branches, and dirty purple- 
coloured flowers. The long-leaved species, C. 
longifolia, was introduced about the same time 
as the preceding, and is fitted to make a good 
appearance in an open shrubbery or large collec- 
tion. Its leaves are each seven inches or up- 
wards in length, and give it a somewhat unique 
character ; and its flowers are large, and have a 
yellow and brown colour, and are produced in 
great profusion from the extremity of all the 
shoots. The name callistachys signifies “ a beau- 
| tiful spike.” 
CALLISTEMMA. See Curna-Aster. 
CALLISTEMON. A genus of ornamental, 
evergreen, Australian shrubs, of the myrtle tribe. 
_ It has a close affinity to the genera metrosideros, 
encalyptus, and leptospermum. About sixteen 
species, varying in height from five to ten feet, 
have been introduced ; and four or five other 
species have been described. All the introduced 
species are more or less beautiful; all require 
greenhouse culture, and are propagable by cut- 
tings; and two have green flowers, two greenish 
yellow, one pale yellow, and most of the others 
pink, crimson, scarlet, or other tints of red. The 
name callistemon alludes to the very elegant 
appearance of the stamina. 
CALLITRICHE,—popularly Water starwort. A 
genus of annual aquatic weeds, of the haloragis 
tribe. ‘Two species, the vernal and the autumnal, 
grow in the ditches of Great Britain, and are 
usually about three inches high ;. and a third 
species, the peduncled, grows in the ditches of 
Scotland, and is usually about a foot high. 
CALLITRIS. An evergreen, ornamental, Aus- 
tralian tree, of the cone-bearing tribe. The cy- 
prus-shaped species, C..cupressiformis, was intro- 
duced to Britain about twenty years ago; and it 
grows to the height of about twenty feet, and 
CALOPHYLLUM. 
has a handsome appearance, but is too tender for 
general open-ground culture. 
CALLUNA. See Huaru. , 
CALOCHORTUS. Agenusof elegant, tuberous- 
rooted, Californian plants, of the liliaceous tribe. 
Two species, C. macrocarpus and C. elegans, were | 
introduced in 1826; and three, C. venustus, C. 
splendens, and C. luteus, have been introduced 
since 1880. The graceful species, C. venustus, is 
now one of the most superb flowering plants in 
British gardens. Its stem is about 20 inches in 
height ; and the part of it which bears the flow- 
ers is comparatively long and slender, and has, 
towards the middle, two lanceolate leaves. 
calyx consists of three green, lanceolate sepals ; 
and its corolla has three ovate-oblong petals, of a 
beautiful white colour, with a red spot near the 
margin, and streaks of deep red. on a yellow 
ground, as also a pencil of hairs, toward the 
base. This species presents considerable resem- 
blance to C. macrocarpus and C. splendens, but | 
differs from the former by the absence of a green | 
rib on the petals, from the latter by the straight- 
ness and marking of its petals, and from both in | 
having white for the prevailing colour of its co- | 
rolla, while C. macrocarpus has purple, and C. 
splendens has lilac. The flowers on one stem 
rarely exceed two in number. The name calo- 
chortus signifies “ beautiful grass.” 
CALODENDRON, An ornamental, evergreen, 
Cape-of-Good-Hope tree, of the rue tribe. It 
forms a genus of itself, and takes for its specific 
name Capense. It has the reputation of being 
one of the most handsome trees of South Africa ; 
and its name signifies “the beautiful tree.” Its 
usual height is about forty feet ; its flowers have 
a pink colour ; and its fruit reser NR the chest- 
nut, but can peiden be brought to England un- 
Somacenl! This plant was introduced to Britain 
upwards of sixty years ago ; and is propagated by 
cuttings. 
CALOPHYLLUM. A genus of most beautiful 
evergreen, tropical, timber trees, of the guttife- 
rous tribe. The fibrous-leaved species, C. ino- 
phyllum, usually attains a height of about ninety 
feet, and is one of the most elegant and graceful 
trees in the world. It abounds in sandy soils on 
the coast of Malabar, attains a very large size in 
the island of Balambangan, and is common in 
many parts of the Indian archipelago ; and it was 
introduced to Great Britain in 1793. The inha- 
bitants of Java and other East Indian islands 
plant it around their houses, for the agreeable- 
ness of its shade, the beauty of its foliage, and 
the fragrance of its flowers. Its timber is supe- 
rior to that of most trees for every purpose which 
requires tortuosity and gnarledness. Its trunk, 
when wounded, exudes a yellowish viscid juice, 
which can be herwonall into gum. Its leaves are 
shaped somewhat like those of the water lily ; 
and are so ramified with high veins from their 
midrib as to seem multitudinously intersected 
with fibres. Its flowers have a snow-white col- 
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