Narrative
From T. Tanaka in Citrologia, p. 49, Univ Osaka, Japan, 1961: "A compact shrub, seeds polyembryonic, susceptible to sunburning, sizes well in Japan." May be a tangor. notes from WP Bitters's trip to Japan, 1963: "A small fruit, height 4 - 7 cm, width 5.5 cm, smooth skinned, light orange, slightly oblate, rind 3 mm thick, 15 - 20 seeds, appears polyembryonic, leaves similar to orange, slightly smaller, flesh tender, somewhat bitter. Not a commercial variety but might be a possible rootstock." (EM Nauer, ca 1989?)