172 
ORCHIDS. 
Atleeana 
Campanulata alba 
Impressa 
alba 
gran diflora 
nana 
Goccinea 
Copelandica 
Coruscans 
Gran diflora 
Hally’s seedling white 
Hyacinthiflora 
Splendidum 
Yariabilis 
'Wilmoreana. 
Miniata 
Nivalis 
Pulchella 
SUMMER TREATMENT OF ORCHIDS. 
At this end of the blooming season, a cursory glance through 
the orchid houses will generally show the plants to have become 
strangely intermingled. A desire to place the most beautiful 
where they can be best enjoyed, or in such a position that the 
power of contrast may be made to heighten their beauty, will 
often lead to their being misplaced as regards their cultural 
management; and now that the principal portion of the most 
valuable species have ceased flowering, it will be well to get them 
replaced and set growing. 
This course is most essential with the Indian species, a class 
which, with proper convenience to grow them apart from the 
other portion of the collection, is most decidedlv of the easiest 
management, but one in which beginners often fail, by attempt¬ 
ing to cultivate them by the same routine as is fitting for the 
American class. The meagre appearauce of many of the plants 
in small collections is, without doubt, attributable to this error. 
The endeavour to keep such an average temperature as will suit 
the whole, leads by opposite effects to the injury of both classes. 
To enable the Indian kinds to grow at all, it is necessary to have 
so much heat as is decidedly ruinous to those from Mexico and 
that part of the world, the major part of which may be very 
successfully grown in the warmest part of an ordinary green¬ 
house ; or, if the latter are most esteemed, and the treatment 
made subservient to their health; the converse happens to the 
more tender kinds—they suffer from the starving effects of a 
low temperature. Those, then, who have a mixed collection, 
