Hello
Many of the paphiopedilum plants from this nursery is from Popow, so that might be the explanation, I have myself bought a couple of Phragmipedium kovachii from them, and they explained that they was offspring from motherplants from the late Boscha Popow, and a lot of their Paphiopedilums also is from Popow, Boscha might have a "spotted" reputation but I knew him personally, and he was always very nice and generous to me, and was always comitted to give good quality plants, sadly most of the paphios I got from him back then, died due to warm, dry windowsill conditions then, that attracted a lot of various insects that killed most of them, very sad, as there was quite a few rarities, but as said, many of Grossraescheners plants is from Popow