Dircaea blassii

Van Houtte, 1856

This plant is most likely to be what is now known as a pendant form of Sinningia magnifica, according to Dr. Alain Chautems.  It may also be a form of Sinningia  cooperi.  In either case, it would be a desirable subject for reintroduction into cultivation.  A companion print shows a closeup of the flowers.