5. Ostrya rehderiana Chun

Journal of the Arnold Arboretum 8 (1): 29 (Chun 1927). – Type: China, Tien Moh Shan, 400 m a.s.l., fairly common in open woods, 2 Oct. 1925, R.C. Ching 3385 (lecto-, designated here: A00033790!; isolecto-: N, US 00089314!).