Fepruary; 1915.| THE ORCHID REVIEW. 53 
present no great difficulty, and are met by merely fastening the. plant.on to 
a‘teak board or raft, suspending it in the lightest position available, and 
affording but little water at any time. 
CATTLEYA HoUSE.—Among winter-flowering species of Cattleya the 
well-known and useful C. Trianz takes first place, with C. chocoensis and 
C. Percivaliana as useful companions. In addition to these there will be 
found many hybrid Cattleyas, Lzelias, and Lzliocattleyas that also bloom 
at this season. A considerable number of these plants will now be pushing 
flower spikes up through their sheaths, and, in order to bring their flowers 
to perfection, a little extra water should be afforded them at the root, 
withholding it again when the blooms are fully expanded, after 
which, for the benefit of the plants, a very restricted supply is desirable 
till each plant commences to grow afresh. Such species as C. Warneri, 
C. maxima, and C. Schilleriana, also several of the Lelia purpurata 
hybrids, have commenced to grow, and it is advisable to place such plants 
in the lightest positions available. A very limited supply of water should 
be afforded them till new roots are seen pushing far and wide through the 
compost, when’ the quantity should be gradually increased. 
Cuysis.—In this house the deciduous epiphytal Orchids, Chysis aurea, 
C. bractescens, C. Limminghei, and C. levis, also the distinct hybrids C. 
Chelsonii and C. Sedenii will now be starting into growth, and should no 
longer be kept under treatment suitable for plants at rest. For the present, 
and till the flower spikes—which push up along with the new growths—are 
visible, water should be sparingly applied, after which time the quantity 
may be considerably increased. Immediately the flowers fade the young 
breaks commence to emit new roots, and this is the best time to afford 
more root space to plants that require it. Chysis are best cultivated in 
pots, which may be suspended near to the roof glass, choosing rather small 
pots in preference to larger ones. In small pots very little drainage is 
needed, and the material for the roots to run into should consist only of 
coarse osmunda fibre, which should be packed firmly around the base of 
the pseudobulbs. The plants should be grown at the warmest end of the 
house, and if towards the end of the growing season they are late in 
finishing up their growth, a place should be found in the East India 
division, the extra warmth and moisture greatly assisting them to swell and 
complete their new pseudobulbs. 
INTERMEDIATE HOUSE.—Cypripedium insigne and its numerous distinct 
varieties, especially the yellow-flowered var. Sandere, are general favourites 
amongst gardeners, a fact due to their vigorous constitution and easy 
culture. They thrive in almost any house from which cold winds and 
frost are excluded, provided attention be given in the matter of watering, 
potting, &c. Plants of this species, and many of its hybrids, produce 
