170 ORCHIDS. 
C. Lawrencianum.—A very handsome species, remarkable 
for its large, attractive flowers, as well as for its richly- 
variegated foliage. It is a robust grower, the leaves about 
gin. long, 2in. broad, tessellated with yellow-green on a 
dark green ground, and very ornamental. Scapes tft. 
or more high, purple, hairy, usually one-flowered; dorsal 
sepal very large, spreading, white, with broad, parallel 
lines of brown-purple; petals spreading, 24in. long by 4in. 
in width, green, tinged with purple at the apex, shaded 
with red at the base, the margins bearing a few purple, 
hairy warts; pouch large, almost cylindrical, purplish brown, 
yellowish at the base. The blossoms are developed in 
summer. This plant should be included in every stove 
collection of Orchids. It is a native of Borneo, and was 
introduced in 1878. 
Botanical Magazine, t. 6432. 
Var. Hyeanum differs in having the dorsal sepal white, 
with pale green lines; petals green, covered with short, dark 
hairs; and the pouch grass-green, with veins of a darker 
shade. It is considered to be a bleached or albino form 
of the type. 
There are eight other named varieties of this, viz.: albo- 
marginatum, atro-purpureum, biflorum, elegantissimum, 
magnificum, majus, superbum, and virescens. The names 
are descriptive of the distinctive character of each. 
C. longifolium.—A free-growing and stately plant, with 
long, strap-shaped, dark green, shining foliage, forming 
a large tuft. Scape erect, from 2ft. to 3ft. high, six- to 
ten-flowered, the flowers opening in slow succession, so 
that the plant is in blossom for about half the year; dorsal 
sepal pointed, thin, wavy, green, with faint reddish streaks ; 
lower sepal large, boat-shaped, pale green; petals narrow, 
4in. to 6in. long, twisted, green, margined with rose and 
