This genus is a very interesting one, though but few of its species can be 
considered very showy. The long lateral sepals, which are generally united, and 
differ from the rest of the flower in colour, together with the curious way in 
which the flowers all radiate from the centre, tend to give the inflorescence a 
singular and quite unique appearance, while the delicately balanced lips, which 
oscillate backward and forward on the slightest touch, are equally peculiar. 
Several novelties have recently appeared in different collections, and a short 
time ago perhaps the finest species in the genus, viz. C. Coletti HEemst., flowered 
for the first time at Kew. It is therefore apparent that the genus is larger than 
has hitherto been supposed, and as the great Malayan region is not nearly 
exhausted, some further additions may yet be expected. 
Ria. ROLrE: 
(Continued from page 6.) 
broad house, thanks to a particular very practical arrangement, which we would 
‘recommend to amateurs who have only one or two houses. Above the tables, 
below the baskets, was placed a narrow zinc trough containing water, the 
evaporation constantly arising from which supplies the necessary humidity. It is 
not necessary to have a deep trough; two inches is sufficient, and it will be the 
more easy to remove, when required. 
Another recommendation is of great importance. Watch attentively for 
vermin, which frequently invade the compost, and which should be relentlessly 
hunted down. The best way is to place, on the hot water pipes, a layer of pieces 
of tobacco, and to sprinkle them three or four times a day. Under these condi- 
tions they will soon disappear, and will not come in again from outside. 
When the flower-spike begins to push up, the basket should be lowered a 
little, to allow of its development. From this time we give a little less water, 
until the flowering season is over, after which the plants should be kept as dry 
as possible. The resting period occupies six or eight weeks, during which 
the waterings should be reduced to a strict minimum, all the humidity necessary 
being just sufficient to keep the sphagnum alive, and the leaves from shrivelling, 
this being better given to the atmosphere by light syringings of the wooden 
baskets than by direct waterings. 
When the leaves appear to shrivel and fade away, it is best to give the plant 
a little water. 
All the waterings should by preference be given with rain water, as in the 
case of all other Orchids. : 
(To be continued.) 
