228 ORCHIDS. 
the joints of the ripened new growths, each 4in. across ; 
sepals lance-shaped, petals as broad again, both rich 
magenta-purple; lip folded at the base, heart-shaped in 
front, hairy on the upper surface, and coloured crimson- 
purple, paler at the apex. Odour powerful, like that of 
rhubarb. A native of the Philippines; introduced in 1840. 
This species should be grown in a teak basket, sus- 
pended near the roof, in a hot, moist stove, save for a 
month or so after it has matured its growth, when it 
should be kept a little cooler. It produces its splendid 
flowers in spring. 
Botanical Magazine, t. 3970. 
Var. anosmum.—Stems shorter. Flowers usually produced 
singly, and almost odourless. 
Var. Huttonz.—Stems slender. Flowers white, purple in 
the throat. 
D. thyrsiflorum.—This plant is almost identical with 
that already described under the name of D. densiflorum 
var. Schroederi, the only difference between the two being 
in the characters of the pseudo-bulbs, those of the former 
being without angles, from 1}ft. to 2ft. high, and brownish 
when mature; whilst in the latter they are four-angled, 
short, and green. The flowers of the two are identical. 
Both plants are ranked among the most beautiful of all 
Orchids; they are easily grown, and blossom freely and 
regularly every spring (about April). D. thyrsiflorum is 
a native of Burmah, and was introduced in 1864. 
Fig. 60; Botanical Magazine, t. 5780. 
D. tortile——A pretty species, not unlike D. primulinum. 
The pseudo-bulbs are club-shaped, 1ft. long, slightly com- 
pressed and zigzag, yellowish when old. Leaves lance- 
shaped, gin. long. Flowers gin. across; sepals and petals 
narrow, twisted, rosy lilac; lip broad, woolly or “frosted” 
