THE ORCHID REVIEW. 281 
Sanderiana and V. ccerulea, both lovely Orchids. The first-named was 
recommended formerly to be grown in the warmest house, but I have had 
the best results ina shady position in the Cattleya house. Much has of 
late been written about the last-named, and an average greenhouse treat- 
ment advised. My advice still is a warm Intermediate temperature, 
especially during the winter months, and see at the same time that they 
never suffer from drought. Galeandra Devoniana is also blooming, an 
interesting and pretty Orchid, which grows freely enough under exactly the 
same treatment as required for Cattleyas, and in the same house, the season 
of growth and rest being identical. Then, again, the Selenipediums are 
very useful at this season, and also that good old Orchid, Saccolabium 
Blumei, which, like many others of the same genus, is still worth growing. 
To do this class of Orchids well it is not in the least necessary to have 
great heat, as is sometimes supposed, but by this it must not be understood 
that they will grow in Intermediate temperature. If possible, a position should 
be selected in the East Indian house which is shady, moist, and quiet, that is 
to say, free from rapid fluctuations of temperature and atmosphere. Cold 
draughts, a sudden rise of temperature, drought, &c., is most injurious to 
these jungle-growing, moisture-loving Orchids. 
Side by side with the above will best grow Phajus tuberculosus, and in 
such a position I have also great hopes of growing that lovely P. Humblotii, 
which has hitherto not given great satisfaction. Miltonia Roezlii, now at 
its best, is another loving the same treatment. Bolleas and allied genera 
also do best when subject to these more quiet and unchanging conditions. 
Other useful Orchids now in flower are Miltonia vexillaria rubella, and 
the rare and handsome M. v. superba, which require Intermediate treat- 
ment. In the Cool house Oncidium macranthum is making the boldest 
show, supported by a few spikes of Odontoglossum crispum, O. X Ander- 
sonianum, O. bictonense, and a few others. 
A correspondent asks a few questions, and ‘ 
could enlighten him on the points raised.” Firstly, 
the flower-stem of Oncidium Gravesianum, 15 inches long, turning yellow 
before the flowers expand?” Candidly speaking, I do not know. Such 
things do sometimes happen under the best and most careful treatment. 
It doubtless occurs more frequently when the plants are badly cared for, 
such as growing them too hot or too cold, too wet or too dry. These, 
among other things, such as insect pests, like thrip and aphis, will bring 
about the same result. Oncidium Gravesianum is a cool growing Orchid, 
and should be suspended in the Odontoglossum house. ue 
Secondly, ‘‘ When is the best time to re-basket Ee awores tigrina ? 
Some of the new growths are too near the side to develop.” I find the 
éonth of March a good Ume 10 sama ewer tf however, 
emains in good condition the fact of the new growth nearing 
would be much obliged if I 
«‘ What is the cause of 
the compost r 
