LADY’S SLIPPERS 535 
at tip, pale purplish red at base; three-keeled; in many-flowered racemes ; 
September and October. Introduced from the Philippines, 1881. 
V. SUAVIS (sweet). Flowers fragrant, large, white, spotted and 
barred with purple-red; lip rosy purple. Probably only a variety of 
V. tricolor. Introduced from Java, 1847. 5 
V. TERES (tapering). Plant straggling or climbing; leaves terete. 
Flowers large, the sepals white, tinged with rose; petals and lip rosy 
magenta; throat orange, marked with crimson; racemes about two- 
flowered; June to August. Requires bright sunshine all the year round. 
V. TRICOLOR (three-coloured). Flowers large, fragrant, pale yellow, 
spotted with brownish red; lip rose-magenta, basal lobes and short spur 
white; in dense, short racemes. Introduced from Java, 1846. Plate 
The directions given for the cultivation of Aérides, 
with temperatures, etc., apply equally to Vanda. We may 
add that they may be grown in baskets, as well as pots, using the same” 
materials in similar fashion. In the event of specimens growing too tall, 
the upper part of the stem may be cut off in February below one or 
more roots, and potted separately. These plants like plenty of light, and 
little shading is necessary. V. hookeriana and V. sanderiana require 
great heat and moisture. 
Description of Vanda tricolor. Fig. 1, entire plant, reduced to about 
Plate 244. = one-sixth of the natural size; 2, flower, natural size; 3 and 
4, front and side views of the column; 5, the pollen-masses. 
Cultivation. 
LADY’S SLIPPERS 
Natural Order ORCHIDEH. Genus Cypripedium 
CypRIPEDIUM (from Kypris, the Greek name for Venus, andpodion, a 
slipper). A genus of about forty species of terrestrial Orchids with un- 
branched leafy stems arising from a creeping rootstock, without either 
tubers or pseudo-bulbs. The characteristics of the flower are a large 
inflated lip with turned-down edges, and a column that curves over, 
nearly closing the orifice of the lip and bearing at its extremity a 
deformed stamen, which takes the form of a dilated lobe, and has upon 
each side an anther-bearing process and the stalked stigma below. 
Instead of the solitary anther of the previously described genera, we 
here get two anthers, each with two cells. The flowers are either 
solitary or two or three in a raceme. The species are natives of 
