SELENITE TUM 
(PHRAGMOPEDILUM) 
This genus has been included with the Cypripediums, from which it differs only 
on the formation of its ovary. For information regarding culture and species see 
under Cypripedium. 
SOUSRAL TA 
A genus of terrestrial orchids of some thirty species, some of which produce 
handsome and graceful flowers but which, because of the short life of the 
blooms, is but little cultivated. They grow in clusters of slender reed-like stems, 
which bear a few plaited, somewhat leathery, lanceolate leaves. They are heavy 
feeders, and should be planted in pots which give them ample root room with a 
compost of loam, leaf-mould, a little fibre (either polypodium, osmunda, stag- 
horn or cocoanut) and some dried cow-dung. The addition of a little bone-meal 
will improve the growth and flowering of the plant. Drainage must be perfect, 
as copious water must be applied throughout the growing period, and even in 
Winter the compost should be kept damp. They will do in a glasshouse in Bris- 
bane, but in the colder parts hothouse treatment is preferable. In the far North 
open bushhouse or even outdoor cultivation will be possible. The best species are: — 
SOBRALIA LEUCOXANTHA. Native of Costa Rica. 
Stems slender, 18 inches to 2 feet high. Flowers produced singly at intervals. 
Sepals and petals 3 inches long by 1 inch wide, tips veined, white. Lip white out- 
side, inside golden-yellow at the throat, gradually paling to white at the frilled 
edge. Apex spreading, base curled into a tube. Flowers in succession at intervals 
during the Summer. Individual blooms Jast one to two days only. 
SOBRALIA LOWII. Native of Colombia. 
Stems slender, 1 to 15 feet high, and purple. Sepals and petals and lip bright 
purple. 
SOBRALIA LUCASIANA. Native of Honduras and Mexico. 
Stems slender, 3 to 5 feet high. Flowers large. Sepals and petals white, tinged 
with rosy-pink. Lip rosy-purple with a yellow blotch at the throat. 
SOBRALIA MACRANTHA. Native of Guatemala and Mexico. 
The best species. Stems slender and reed-like, occasionally reaching a height of 
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