438 ORCHIDS. 
R. antennifera.—This lovely little plant has slender 
stems 4in. to 6in. high, each surmounted by a single heart- 
shaped, leathery leaf 2in. to 4in. long. The flower-scapes 
—several of which are produced at the top of each stem— 
are about 4in. in length, very slender, and bear each one 
flower of exquisite beauty. The upper sepal is rdin. long, 
and thread-like, except at the base, and it has a little knob 
on the tip; in colour it is yellow and purple. The petals 
are similar in shape and colour, but are much smaller; 
their antennz-like appearance gives rise to the specific 
name. ‘The lateral sepals are the prominent feature of 
the flower; they are united by their inner margins, 
except near the apex, and form one oblong segment 
1tin. long, which is yellow, beautifully marked with 
longitudinal lines of purplish-crimson. The lip is similarly 
coloured, but small and inconspicuous. This species grows 
on the trunks of trees, at an altitude of 6o00oft. to 12,000ft., 
in New Granada and Venezuela, and was introduced in 
1869. It flowers from November to February. Syns. &. 
guttata, R. maculata. 
Botanical Magazine, t. 6288. - 
R. elegans.—A very elegant little plant, resembling 
R. antennifera in everything except size. Its stems are 
only 2in. to 3in. high, clothed with pale green scales, and 
bearing an apical, solitary, oval leaf tin. to 2in. long, 
leathery in texture, dark green on the upper surface, and 
paler beneath. The flowers are borne on slender, filiform 
stalks about 2in. in length. The dorsal sepal is lance- 
shaped, white, streaked with purple, the upper part being 
drawn out into a yellow tail, with a club-shaped tip; the 
petals are similar, but only half the size; the two lateral 
sepals are joined so as to form an oblong, concave blade, 
which is yellow, marked with numerous purple dots. The 
