Paphiopedilum Harrisianum 'USBG' is blooming out in my greenhouse today. Its a primary hybrid of Paph. barbatum x villosum registered by Veitch in 1869, making it one of the first few orchid hybrids made. There's a good chance that this may be a piece of one of the original plants. I got it as a single growth "trash" piece off of the compost pile at the United States Botanical Gardens greenhouses about 1985, and they have a lot of the older plants. They maintain quite a few of these Harrisianum plants and its known among Paph growers on the east coast. The size and shape of the flower is not as good as the awarded 'G. S. Ball' clone, but it still makes a nice show because of its vigor. It currently has eleven blooms and seven buds on a plant in an eight inch pot.