444 ORCATDS: 
valuable of Orchids, and is said to have been found 
hitherto on one tree only. In May, 1887, a plant of it 
was sold for 150 guineas. 
S. ceeleste.—A singularly beautiful species, rarely attaining 
1ft. in height, having deep green, decurved leaves, and 
erect, densely-flowered racemes 6in. to gin. high. It is 
rendered distinct by the unusual colour of the flowers, 
which are white, with the tips of the sepals and petals 
and the major portion of the lip sky-blue. Each flower is 
#in. across; the sepals and petals are almost equal, cuneate- 
oblong, and incurved; the lobed lip is spreading in front, 
and is modified at the back into a flattish; hooked spur. 
This plant requires moist, tropical treatment all the year 
round, with plenty of sunlight and air whilst growing. A 
native of Siam, flowering during July and August. Syn. 
Rhynchostylis celestis. 
Williams’ Orchid Album, t. 361. 
S. curvifolium. — A small, free-flowering species, very 
pretty when in bloom. The linear, curved leaves are 
channelled, rigid in texture, narrowing to the apex, where 
they are unequally bilobed. The racemes are erect, about 
6in. high, and densely clothed with sparkling, bright orange- 
scarlet flowers, which are about Iin. in diameter; the 
upper sepal and the petals are obovate; the lateral sepals 
are broader at the base. A bright effect is given to the 
flowers by the violet-coloured anther-case. A native of 
Nepal, Burmah, and Ceylon. It flowers in May and June. 
Botanical Magazine, t. 5326 (as S. miniatum). 
Var. duteum has bright yellow flowers; otherwise it is 
similar to the type. It is rarely met with. 
S. giganteum.—This is a large and handsome species, and 
should be in every large collection of Orchids. The leaves 
