150 THE ORCHID REVIEW. 
Odontoglossum grande, O. Williamsianum, O. Schleiperianum, O. 
Reichenheimii, O. Insleayi, O. hastilabium, O. Harryanum, O. cirrhosum, 
Maxillaria grandiflora, M. venusta, and M. Sanderiana, Masdevallia 
-Reichenbachiana, M. rosea, M, Schlimii, M. Shuttleworthii, M. tovarensis, 
M. ephippium (Trochilus), M. Chimera, and allied kinds, M. Houtteana, 
M. macrura, M. nycterina, and M. psittacina, Lycaste Skinneri, Cymbidium 
eburneum, C. giganteum, C. Lowianum, C. Tracyanum, Dendrobium 
infundibulum, D. Jamesianum, and D. Falconeri. I mention this. simply 
as a guide to experiment should any of the foregoing refuse to make reason- 
able headway. Ido not say that it is always absolutely essential to their 
well-being, as much depends upon the house, and, as I have said previously» 
it is really surprising what an enormous quantity of different species can be 
collected together from various parts of the globe and cultivated successfully 
in one house, if one has some idea of their individual requirements as to 
shade, warmth, and moisture, and judiciously selects suitable positions 
for them. 
-HEAT-Lovinc SpectEs.—There are a few kinds which cannot be said 
to flourish successfully in a mixed collection of intermediate Orchids, and 
unless one has the extra heat of an East Indian or Stove house at command, © 
it is not wise to attempt to grow them very extensively, because, however 
cleverly the manipulation of the various plants may be performed in a 
medium department, it is impossible to provide for them enough heat 
unless there is too much for the large majority of the remainder. There 
are for instance, those beautiful Dendrobiums from New Guinea, of which 
the lovely D. Phalenopsis and varieties are the most useful. These 
require an abundance of heat and moisture during the summer months, if 
perfection is attained. Then again that lovely genus, Phalznopsis, wants 
good heat, as also do some few of the Oncidiums, such as O. Papilio, 
Krameriaum, Lanceanum, and ampliatum. 
THE AMATEUR’s House.— Unless partitioned off, as before advised, the — 
Odontoglossum crispums and allied cool-growing kinds, should be removed 
to acool frame. Such a frame may be roughly built for the occasion, and 
is best if having a northern aspect. It should be of sufficient height to- 
allow the placing in of a stage on which to stand the pots, raising them a 
few inches so that the air can circulate beneath them. Shade well from 
the sun, and give plenty of water. Do not place the frame underneath 
trees, but in the open. A syringing overhead early morning and again at 
night in hot, dry weather, will do a good deal of good, which, in addition to 
the watering at the root when dry, will suffice for the requisite damping. 
_ Ventilate to the leeward as much as possible, thus preventing arid draughts. 
Odontoglossum Rossii and O. Cervantesii should certainly occupy this | 
frame. These two species will not require much water for another few 
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