Fig. 1.

Images of Synotis cavaleriei, S. duclouxii, S. nagensium, and S. erythropappa. (A, B,C, D) Inflorescence of plant growing in natural habitat; (E, F,G, H) morphology of leaf. ((A, E) S. cavaleriei, voucher LXF0170, SCNU, Butuo county, Liangshan prefecture, Sichuan province, China). ((B, F) S. duclouxii, voucher LXF0219, SCNU, Butuo county, Liangshan prefecture, Sichuan province, China). ((C, G) S. nagensium, voucher FZX5549, SCNU, Tongchuan District, Dazhou City, Sichuan Province, China). ((D, H) S. erythropappa, voucher FZX1038, SCNU, Puge county, Liangshan prefecture, Sichuan Province, China). All photographs by Ming Tang except B and F provides by Yi Yang