This is a fascinating group of plants. They vary from the minute to the humongous. Each flower is weird. Some flowers can be a foot long. Some leaves can be 4 -5 feet long. Many have an odour. Notice that I did not say they were fragrant, although some are. There are representatives in all parts of the tropical world. Some experts split the Bulbophyllum and the Cirrhopetalum, but until they can agree we will go with the genus name with which we acquire them. With anywhere from 300 to 3000 species (depends if you are consulting a lumper or a splitter), there is much interest in classifying this genus at present. Bulbophyllums grow wet at intermediate to warm temperatures with bright light.