3. Corylus chinensis Franch.

Journal de Botanique (Morot) 13: 197 (Franchet 1899). – C. colurna var. chinensis (Franch.) Burkill, The Journal of the Linnean Society. Botany 26: 503 (Burkill 1899). – Original citation: “ China occidentalis, provincia Yunnan, in silvis montanis faucium ad San thang kiou, in via e Tali ad Ho kin, alt. 2200 m (Delavey, nn. 197 et 212)”. – Type: China, Yunnan, San Tchang Kiou, Ho Kin, 2200 m a.s.l., 27 Aug. 1884, J.M. Delavay 197 [P212] (lecto-, designated here: P06811315!; isolecto-: B 10 0464027!, P06811316!, P06811317!, P06811318!, P06811319!, P06811320!, P06811321!, P06811335!, P06881735!). – Note: Corylus chinensis is recognized in the Flora of China (Li & Skvortsov 1999), Flora Sichuanica (Editorial Board of the Flora Sichuanica 2012), and World Checklist and Bibliography of Fagales (Govaerts & Frodin 1998) . The specimen chosen as a lectotype here bears two numbers: “no. 197” (with the number circled) and “no. 212.” There are different numbering systems in Delavay’s collections (Holstein & Weigend 2016a), and the 197 is Delavay’s original number. The number “212” is apparently the specimen number placed on the sheet at the Paris herbarium, which is also found on specimen P06811321.

C. papyracea Hickel, Bulletin de la Société Dendrologique de France 68: 94 (Hickel 1928). – Type: Cult. in Frutic. Vilmorinianum olim. cult., R. Hickel s.n. (lecto-, designated here: P06811311!). – Additional original material: Cult. in Frutic. Vilmorinian., Sep. 1910, R. Hickel s.n. (P06811310!). – Note: Corylus papyracea is listed as a synonym of C. chinensis in the Flora of China (Li & Skvortsov 1999), in the Flora Sichuanica (Editorial Board of the Flora Sichuanica 2012), and in the World Checklist and Bibliography of Fagales (Govaerts & Frodin 1998) . The material for the description of this “species” was only observed in cultivation and according to the author, it already had disappeared 10 years before publication. Hickel mentions that Vilmorin believed that the seeds were from China and had been originally collected by P.G. Farges in 1904. The lectotype was chosen because the upper right leaf is the one shown in the illustration accompanying the protologue. The other specimen bears the unpublished name “ Corylus papyrifera ”, but does not differ from the lectotype. Possibly, that name was a working name.

C. chinensis var. macrocarpa Hu, Bulletin of the Fan Memorial Institute of Biology, Botany 8: 32 (Hu 1937). – Type: China, Yunnan, Wai-Si Hsien, Yeh Chih wa-rung, 3400 m a.s.l., Aug. 1935, C.W. Wang 68308 (holo-: PE00802441!; iso-: A00033779!, PE00802422!, PE00802446!, PE00802445!, PE00802439!, PE00802430!). – Note: Corylus chinensis var. macrocarpa is listed as a synonym of C. chinensis in the Flora of China (Li & Skvortsov 1999), Flora Sichuanica (Editorial Board of the Flora Sichuanica 2012), and World Checklist and Bibliography of Fagales (Govaerts & Frodin 1998) .