52 
JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
trees, thin as they are, yet give some shade, grow Catasetums of 
more than one species, as well as a Brassia, perhaps unnamed, 
but certainly not beautiful enough to be an acquisition to 
gardens. And in the deeper shade grows one of the rare 
terrestrial Orchids of Guiana, a Microstylis. 
Outside the clumps of trees, but where the shadow of these 
occasionally falls, are thickets of a Cyrtopodium with gigantic 
pseudo-bulbs, often three or more feet long, over which rise the 
splendid masses of yellow flowers. 
I have left myself no space to speak of the forest country 
further inland, or of the open highlands, to which the name of 
savannah more especially belongs, yet further in the interior. 
If the Orchid pictures which have already been given are of any 
interest to the readers of the Society’s Journal, possibly the 
editor will allow me on a future occasion to tell of the homes 
of the Cattleya and Selenipediums (of both of which genera, 
however, there are but few species in Guiana), as well as of my 
own greater favourites, Trichocentrum, Quehettia , Octomeria, and 
so on. 
I cannot, however, close the present paper without justifying 
my appearance in a journal of this nature by one suggestion 
which I suppose may be picked out as the one practical point of 
what I have here written. 
I have found by experience in my own garden (which it must, 
however, be remembered is in the tropics) that a great many 
small Orchids which it seems difficult or impossible to establish 
in pots or on blocks, or in any of the ordinary methods of the 
garden, can be established very readily—so readily that in the 
tropics they soon seed themselves freely over the garden—on 
growing plants of garden shrubs. Such shrubs as the various 
species of Taberncemontana, Jasminum, Gardenia, Hibiscus, 
Coffea, and even “ Crotons,” make suitable hosts for Ionopsis 
paniculata, as also for the much rarer I. teres, for Oncidium 
iridifolium, Bodriguezia (including Burlingtonia Candida ), and, 
in short, for most of those which grow naturally on the outer 
branchlets of trees or shrubs, and are consequently much exposed 
to the sun, and are at the same time provided with ideally 
perfect drainage. The conditions in an English stove of course 
differ very materially from those of a tropical garden; but it 
would perhaps be worth the experiment whether some of the 
small “ difficult things ” might not be grown on living hosts. 
