PHAIUS. 407 
and vigour to the growth. In summer, the warmest part 
of the intermediate house is suitable; but in order to 
ripen the growth, and cause the plants to flower, they 
should be subjected to cooler treatment after the leaves 
have reached their full size. They will then require very 
little water. P. grandifolius and P. Wallichii often produce 
a large number of young growths in spring, and unless 
required for propagation, these should be thinned out in 
proportion to the size of the pot. By this means, stouter 
flower-scapes and larger and more numerous flowers are 
obtained. 
P. bicolor.—An easily-grown, useful, and ornamental 
species, closely resembling P. grandifolius in habit, the 
leaves only being somewhat narrower, and of firmer 
texture. The flowers measure over 4in. across, and are 
produced on strong, erect spikes, sometimes 5ft. in height. 
The pointed sepals and petals are 2in. or more long, and 
of a bright reddish brown; the side lobes of the lip are 
rose-coloured, and folded over the column, the broad front 
lobe being yellowish white, flushed with rose. The flowers, 
which are developed in summer, expand in slow succession, 
so that a strong spike lasts three or four months. On this 
account alone P. bicolor deserves to become a popular 
garden plant. It was introduced from Ceylon in 1837, 
and may be grown very successfully in an intermediate 
temperature. 
Botanical Magazine, t. 4078. 
P. Blumei.—A desirable species with lance-shaped, plaited 
leaves, 2ft. in length, and short, roundish pseudo-bulbs, pro- 
duced from a creeping rhizome. The flowers are individually 
about 4in. in diameter, and are borne on the upper half 
of flower-scapes which originate at the base of the pseudo- 
bulbs, and attain a height of 3ft. to 4ft. The sepals and 
