One of Sander's collectors, Wilhelm Micholitz, collected extensively on expeditions to the Philippines (Phalaenopsis micholitzii), Moluccas, New Guinea (Coelogyne micholitzii), Burma and South America. Micholitz shipped Paphiopedilum chamberlainianum (as P. victoria-regina) to Sander & Sons from Sumatra. Like many slippers, P. chamberlainianum has an extremely narrow distribution, making it vulnerable to over collection and habitat loss.
If you're having trouble distinguishing Paphiopedilum chamberlainianum from other closely related species, remember that P. chamberlainianum is characterized by stripes on the dorsal sepals, P. glaucophyllum by its glaucous (dusty blue-grey) leaves, and P. liemianum by leaves bearing hairs on the margins and purple spots on the undersides.
Our Paphiopedilum chamberlainianum is happiest when we can keep the greenhouse temperature in the intermediate range (58º night minimum; 82º day maximum), a task grown more challenging in recent years as the outdoor temperatures trend upward.