MaRcH, 1915-] THE ORCHID REVIEW. a 
find their way into it just before the flower spikes appear, and derive much 
benefit from it, while it affords fresh vigour to the new growths. When 
repotting, the base of the young growths, which will be several inches high, 
should be level with the surface of the compost, and this should be at least 
half an inch below the rim of the pot, so as to make watering easy. Each. 
stem should have a strong neat stake to hold it firm. 
Thunias produce the flower racemes from the apex of the new growth 
about the middle of May, and well-flowered specimens make very hand- 
some plants, and are extremely useful for decorative purposes generally, 
consequently they deserve every attention during their short season of 
growth. To be successful in blooming these plants they should be firmly 
potted, and then placed in the very lightest position available in the East 
Indian house, with the tips of the old stems nearly touching the roof glass. 
The young growths revel in moderate sunshine, but when during the middle 
hours of the day the sun’s rays become very powerful they should be thinly 
shaded. For the next few weeks after repotting and until the growths have 
well started, and are making plenty of new roots, water should be sparingly 
afforded, but afterwards it may be freely supplied, and when the new shoots 
have become well established an occasional dose of weak liquid cow-manure 
will be an advantage. 
ARUNDINAS.—The pretty Arundina bambusvefolia and A. Philippii are 
terrestrial Orchids, which may be similarly treated to Thunias. 
AERIDES AND ALLIEs.—Aérides, Saccolabiums, Angrecums, and 
Rhynchostylis, unfortunately, are not now so generally grown as they 
used to be. Some few of the species of these genera bloom in August and 
September, and one or two during the winter months, but the majority of 
them flower during the early summer, and when in bloom few Orchids are 
more handsome. One might enumerate such plants as Aérides affine, A- 
Houlletianum, A. Lobbii, A. Larpente, A. odoratum, A. suavissimum, A. 
Fieldingii, A. Schroedere, A. Lawrence and its variety Sanderianum, 
Saccolabium giganteum, S. violaceum, and the rare S. Hendersonianum, a 
charming little plant with bright rose-coloured flowers, Rhynchostylis retusa, 
premorsa, R. guttata, the lovely blue R. ccelestis, Angraecum 
sesquipedale, with its large ivory-white flowers, also many smaller 
growing plants, as A. fastuosum, A. citratum, A. hyaloides, A. Kotschy, 
&c. The majority of these epiphytal plants require the warm, moist 
atmosphere of the East Indian house, but a few varieties, as Aérides 
crispum, A. Warneri, and A. Lindleyanum prefer the atmosphere of the 
Cattleya or Intermediate house, while A. japonicum, A. cylindricum, and 
A. Vandarum should be grown cool the whole year round. The two lent 
named, having terete leaves, should be grown in the lightest position 
available. 
