The types were from Ichang, Ilupeh: "Hupeh: Ichang gorge (Maires!), Ichang and immediate neighborhood (A. Henry, 800, 1377 A, 3418!) Herb. Kew." They were not seen.
Western Hupeh. Flowers rose or white. No specimen seen
In addition to the species, Bonati described a variety: M azus pulchellus Hemsl. var. primuliformis Bonati, Bull. Hlerb. Boiss. II. 8: 529 (1908), based on "typ. herb. Mus. Paris.... Habit. Ichang, Hupeh, (Wilson) n? 140. 1900." No specimen has been seen.