Styrax faberi var. formosanus, a New Varietal Combination from Taiwan, China

The new combination Styrax faberi var. formosanus is proposed, and the taxon is lectotypified. Styrax faberi Perkins is endemic to China and includes three recognized varieties (Hwang, 1987; Perkins, 1907). The autonym variety is widely distributed in eastern and southeastern China, and there are two locally endemic varieties, one in Hunan and the other in Taiwan. The Taiwan endemic has been referred to as S. faberi var. matsumuraei (Hwang, 1980, 1987), but at the varietal level S. rugosus var. formosanus has priority. In preparation for publication of the treatment of Styracaceae for the Flora of China, a new combination is made. Styrax faberi var. formosanus (Matsumura) S. M. Hwang, comb. nov. Basionym: Styrax rugosus Kurz var. formosanus Matsumura, Bot. Mag. (Tokyo) 15: 76. 1901. TYPE: Taiwan (as Formosa). Byolstu, Honda 31 (lectotype, here designated, TI). Styrax matsumuraei Perkins in Engler, Pflanzenr. IV. 241 (Heft 30): 34. 1907. Styraxformosanus Matsumura var. matsumuraei (Perkins) Y. C. Liu, Ligneous PI. Taiwan 24. 1972. Styrax faberi var. matsumuraei (Perkins) S. M. Hwang, Acta Phytotax. Sin. 18: 161. 1980. TYPE: same as that of S. faberi var. formosanus. Acknowledgment. I thank Bruce Bartholomew for help in the preparation of the manuscript.