516 FLOWERS OF GARDEN AND GREENHOUSE 
E. PANICULATUM (panicled). Stems tall, reed-like, 2 to 4 feet high. 
Leaves lance-shaped, in two rows. Flowers purple or lilac-purple, the 
column tipped with yellow ; very numerous, in a long drooping branched 
panicle, a foot or more in length. Greenhouse species. Introduced from 
Tropical America, 1868. 
E. PRISMATOCARPUM (prism-fruited). | Pseudo-bulbs, flask-shaped, 
a foot high, dark green; leaves evergreen. Flowers fragrant, yellow- 
green spotted with black or dark purple, lip lilac-purple with white 
border ; raceme erect, ten- or twelve-flowered ; June. Greenhouse species. 
Introduced from Central America, 1862. 
K. VITELLINUM (yolk-of-egg-like). Pseudo-bulbs and leaves glaucous. 
Flowers orange-scarlet, 2 inches across, with bright yellow lip; in erect 
spike, ten- to fifteen-flowered; summer. Stove plant. Introduced from 
Guatemala, 1840. The var. majus from Mexico has larger flowers with 
broader petals. Requires a warm moist atmosphere, but often difficult 
to flower several years in succession. 
For cultural purposes Hpidendrums may be treated 
as though they were Cattleyas, except that the former do 
not require so high a temperature as the latter. As want of space 
precludes one traversing the ground, we ask readers to kindly turn to the 
Cultural Directions on page 519. 
Culture. 
DIACRIUMS 
Natural Order OrcHIDEX. Genus Diacriwn 
Dracrium (Greek, di, two, and akris, a summit: in allusion to the two 
extremities of the column). A genus of about four species, differing from 
Epidendrum in the double prolongation of the column. Diacriwm 
bicornutum (two-horned) is the principal species horticulturally, and it 
has generally been found very difficult to grow. Its pseudo-bulbs are 
stout, 1 foot to 1} foot high, hollowed in the centre and inhabited by a 
small species of ant. Leaves short and leathery, produced at summit of 
pseudo-bulbs, as also are the ten- or twelve-flowered spikes. The flowers 
are white, the lip spotted with crimson. It grows on rocks near Trinidad, 
so close to the sea that it is frequently bathed in sea-spray. It should 
be grown on a block suspended in a moist atmosphere of high temper- 
ature, with full exposure to the sun; and after flowering, the pseudo- 
bulbs should be well ripened by full sunlight in lower temperature with 
less moisture. 
