colour and contrast pleasantly with the handsome spreading lip, the middle lobe 
of which is bifid, the colour of the whole organ being scarlet. Flowers in Autumn. 
Syn. Hab. militaris. 
PLATANTHERA SUSANNAE. Native of Indo-China. 
The largest species. Flowers up to 2 inches across, the spur being up to 4 inches in 
length. Flowers are pure white, the front lobe of the lip being beautifully fringed. 
Habenarias should be potted in the smallest possible containers. Drainage should 
be perfect and the crocks should form a pyramid which will raise the top of the 
tuber to within about half an inch of the rim. The pot is then filled with a well . 
mixed compost of peat, loam, dried dung and powdered crocks, the top of the 
tuber being just covered. Water sparingly until growth has well begun, but do 
not allow the compost to become dry. When in full growth give copious supplies 
of water. If necessary, transfer to a slightly larger pot without disturbing the 
roots, the best way of doing this being to crack the original pot with a sharp blow 
and transfer it bodily to the larger pot. The plants should be placed in a well 
lighted position, but they should be protected from the direct rays of the midday 
sun. During the Winter keep the tubers fairly dry, but not so much as to cause 
them to wither. 
In the North this genus will do well in a bushhouse, and probably this will serve 
in the warmer parts of Brisbane. In cooler areas a glasshouse will be necessary. 
Minimum temperature should not fall below 50 degrees for any length of time. 
HROULLE DPA 
A genus of epiphytical orchids closely allied to the Stanhopeas, the nature of the 
plants being very similar. Only half-a-dozen species are known, and none of these 
is grown to any extent in Australia, although the flowers are of good size, form, 
and colour. 
They grow naturally on the mountain side of Central and South America, usually 
from 4000 to 7000 feet above sea-level. They thrive under cool conditions and 
should do well in Sydney—Brisbane under ordinary bushhouse conditions. They 
like light, but not the too direct rays of the sun. During the warmer months 
copious water must be given, but during the Winter only such moisture as will 
suffice to prevent their pseudobulbs from shrivelling is necessary. For compost 
that prescribed for Cattleyas will suit. The best species are:— 
HOULLETIA BROCKLEHURSTIANA. Native of Brazil. 
One of the finest of the genus. Pseudobulbs about 3 inches high, stout, ovate and 
deeply furrowed, tapering upwards, and each surmounted by a single broad, lance- 
olate, plaited, pale green leaf. Scapes grow from the base of the matured bulbs 
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