I purchased this Rhynchostele Bictoniense from Andy’s Orchids at the Pacific Orchid Exposition in San Francisco in February of 2019. I normally see these mounted, but this one was potted in a bark mix in a 4-inch square pot. It has several bulbs, and appeared to be a mature plant. It has formed three spikes this summer, each with 8-10 1-inch wide flowers that are really beautiful.
This should continue to grow well in my environment.
Ken Joy's Orchid Blog 