Acer sinopurpurascens W.C.Cheng

in Chien & Cheng (1931: 62).

Type:— CHINA. Zhejiang [Chekiang]: Western Tian Mu Shan [Tienmu-shan], elev. 1200–1300 m, 23 April 1931, W. C. Cheng 2424 (PE00023445, lectotype designated by Lin et al. 2009; isolectotypes A00245405, CQNM0015724, IBSC0002074, K000640863, NAS00071819, PE00023443, PE00023446, PE00023448). Remaining syntypes: CHINA. Zhejiang: Western Tianmushan, elev. ca. 845, 16 August 1929, S. S. Chien 845 (A00050488, CQNM0015723, NAS00071817, NAS00071818, NY00337718, PE00023444, K000640862); elev. 1200–1300 m, 23 April 1931, W. C. Cheng 2429 (A00245404, IBSC0002073, K000640864, LBG00076624, PE00023447) .

Note: —In the protologue, Chien & Cheng (1931) designated three gatherings as types of flowering, staminate and pistillate, respectively. Lin et al. (2009) chose a duplicate of staminate at PE (00023445) as the lectotype. The isolectotypes and remaining syntypes are listed above.