by Dr. Lindley; nor does it correspond with the description of P. guttata,.so far 
as the materials at hand enable us to judge. 
This, it will be seen, is a very neat-growing plant, the small tetragonal pseudo- 
bulbs slowly creeping over the surface of the blocks on which the plants are grown. 
It is, moreover, of small stature, the leaves, which grow in pairs from the top of 
the pseudobulbs, rarely exceeding three or four inches in height, and the  flower- 
scapes attaining even less elevation. The flowers, which are rather large for so small 
a plant, being of a rich and brilliant colour, become rather effective; and though, 
of course, they do not compare at all in gorgeous beauty with those of many of 
the larger-flowered Orchids, they are by no means to be despised even from the 
decorative point of view; indeed, when grown on a block, as represented in the 
accompanying Plate, and suspended from the roof of the house, the plant forms a 
very pretty and distinct object, occupying, as it does, but a small space in which 
it displays much beauty and attractiveness. The bright orange-yellow flowers are, 
moreover, very freely produced, and if kept dry, continue for a long time in a fresh 
and pleasing condition. pry 
There is another species of the same habit, Promenea stapelioides, which comes 
into bloom about the same time as this, and in which the flowers are spotted with 
dark purple, so that they appear to be nearly black. The contrast of these two 
when grown and flowered on the same block is very effective. In the noble collection 
of Sir Trevor Lawrence, Bart., M.P., we saw a large pan-full of P. citrina growing 
freely, which had a very beautiful appearance, but we prefer to see the plant grown 
on a block, as in this manner the flowers hang downwards, and are shown off to 
much greater advantage. There are certain varieties to be occasionally met with, 
in which the flowers are without spots on the lip, but those which have this 
latter peculiarity are to be preferred, as the two colours afford a pleasant relief. 
Fibrous peat and sphagnum moss seem to suit the plant well when it is grown 
in either pots or pans; but when cultivated on blocks of wood, a little sphagnum 
moss only about its roots will be quite sufficient, though if grown in this latter 
way it requires a more liberal and more frequent supply of water, in order to 
keep the roots moist. We find the Cattleya-house to suit it best, and we grow 
it suspended against a wall at the end of the house, where it gets syringed in warm 
weather. The manner in which its blooms are produced may be seen from our 
Illustration, which is an excellent representation of the habit of the plant, not only 
as regards its general manner of growth, but also of its mode of flowering. 
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