I have put these four together, not because they are all botanically related, but that the same treatment will do for all, and they all make their flowers on short stems from the side of the bulbs. They all should be grown in pots, well drained, and a mixture of sphagnum moss, charcoal and peat, suits them. In potting, the base of the bulbs should be raised well above the edge of the pot. This is particularly requisite with Trichopilia, whose flowers are semi-pendant. This also insures the roots from being rotted by too much water.