I have been taking a few pictures of Thai orchids this past week so decided to goto a Thai nursery I know to get some more photos, seems the garden centers get hit quite hard when the economy goes to shit and they don't have much of a selection like they used to, they have plenty of the Cattleya, the ones 3 for 100baht or less, but the real nice ones at around 250baht were pretty scarce to say the least, times are obviously hard.
Anyway from wiki on Cattleya Orchids.
Cattleya are widely known for their large, showy flowers, and were used extensively in hybridization for the cut-flower trade until quite recently. This genus and the numerous hybrids come close, through their beauty, to the idealized picture we have of the orchids. The flowers of the hybrids can vary in size from 5 cm to 15 cm or more. They occur in all colors except true blue and black.
The typical flower has three rather narrow sepals and three usually broader petals : two petals are similar to each other, and the third is the quite different conspicuous lip, featuring various markings and specks and an often frilly margin. At the base, the margins are folded into a tube. Each flower stalk originates from a pseudobulb. The number of flowers varies; it can be just one or two, or sometimes up to ten.