OCTOBER, 1923.| THE QRCHID REVIEW. gun 
their young growths and forming a quantity of fresh roots. They will still 
require a liberal supply of water until the new pseudo-bulbs are fully 
developed. Trichopilias flower at various times during the year, and for 
that reason their re-potting should be carried out at intervals, just when 
new roots appear at the base of the new pseudo-bulbs. T. suavis is the 
handsomest of the species, and is most frequently grown, but T. fragrans, 
T. coccinea, T. tortilis, and T. sanguinolenta, are all worthy of cultivation. 
Most of these plants grow best in rather deep Orchid pans, suspended near 
the roof-glass in an intermediate temperature. But T. fragans thrives best 
during the summer months on the stage in the cool Odontoglossum_ house. 
Whilst growing actively, the plants should be afforded a plentiful supply of 
water at the roots, and when the season’s growth is finished, they should 
receive less moisture and more light and air to ripen them. 
AERIDES, ANGRE&CUMS, AND SACCOLABIUMS.—Many of these plants that 
flowered early in the year will soon have completed their season’s growth, 
and the supply of water at the roots should be reduced gradually. Although 
these Orchids never entirely cease making leaf growth, it is important that 
they should be given a short period of rest. When ‘in active growth 
sufficient water should be afforded to keep the moss on the surface in a 
green and fresh condition, but from now onwards through the winter 
months the sphagnum-moss should be allowed to dry to a greenish yellow 
colour before water is applied. Angrzcums that are in full growth, in- 
cluding A. sesquipedale, A. Eichlerianum, and A. pellucidum, still require 
plentiful supplies of water. A. eburneum is developing its flower spikes, 
and also requires to be kept moist at the roots. 
OncipiumMs.—Plants of Oncidium varicosum, O. crispum, and O. 
Forbesii are pushing their flower scapes, and must not suffer drought at the 
roots, or the flower buds will drop. These plants produce strong branching 
inflorescences, which exhaust their energies. Therefore only robust, well- 
rooted specimens should be allowed to flower; weakly plants should have 
their flower spikes removed as soon as they appear, and be given every 
encouragement to grow strong. In no case should the flower spikes be 
allowed to remain on the plants after the pseudo-bulbs show signs of 
shrivelling. Oncidium Papilo and O. Kramerianum that are producing a 
succession of flowers from their slender stems should not be allowed to 
become dry at the roots at any time; the stems should be removed after 
three or four flowers have developed. These plants are best grown in 
shallow Orchid pans or teak-wood baskets, which should be suspended in a 
light position in the Cattleya house. 
VANbDas.—Towards the end of the month plants of the tall growing 
section, which include V. tricolor and V. suavis, may be given attention as 
to re-potting or affording fresh surfacing materials, as at this time the plants 
