The nutty world of hazel names - a critical taxonomic checklist of the genus Corylus (Betulaceae) Author Holstein, Norbert Author Tamer, Sarah el Author Weigend, Maximilian text European Journal of Taxonomy 2018 2018-02-28 409 1 45 journal article 22367 10.5852/ejt.2018.409 81b4a8ca-db15-4a5f-95b8-2d14ed9f08d6 3787160 10b. Corylus heterophylla var. sutchuenensis Franch. Journal de Botanique (Morot) 13: 199 ( Franchet 1899 ). – C. sutchuensis (Franch.) Nakai , Journal of Japanese Botany 15 (9): 524 ( Nakai 1939 ). – C. kweichowensis var. sutchuenensis (Franch.) C.C.Yang, Flora Sichuanica 21: 5 (Editorial Board of the Flora Sichuanica 2012 ) nom. illegit. superfl. – Type : China , Sichuan , Tchen keou tin, 1400 m a.s.l., P.G. Farges 805 [originally cited “ 809 ”] (lecto-, designated here: P06810915!; isolecto-: B!, B!, P06810916!, P06810917!). – Note: Corylus heterophylla var. sutchuenensis was recognized in the Flora of China ( Li & Skvortsov 1999 ) and the World Checklist and Bibliography of Fagales ( Govaerts & Frodin 1998 ) while it was regarded as a variety of a distinct C. kweichowensis in the Flora Sichuanica (Editorial Board of the Flora Sichuanica 2012 ). C. heterophylla var. crista-galli Burkill, The Journal of the Linnean Society. Botany 26: 504 ( Burkill 1899 ). – Type: China , Hunan , Shimên, Mar. 1886 , A. Henry 7942 (lecto-, designated here: K000859899!). – Additional type material: China , Hubei , Patung, Sep. 1886 , A. Henry 1449 (syn-: K000859898!, K000859900!, K000859903!, P06809382!); China , Hubei , Ichang, Feb. 1887 , A. Henry 2854 (syn-: K000859903!); China , Hubei , Ichang, Feb. 1887 , A. Henry 2866 (syn-: K000859900!); China , Hubei , Tungku, Mar. 1889 , A. Henry 6413 (syn-: BM!, GH00033780, K000859901!, K000859902!, P06809384!); China , Yunnan , “gorges of Lanho near Lankong”, 7 Aug. 1883 , J.M. Delavay 128 (syn-: P06810940!). – Additional original material: China , Yunnan , les bois à Yang in Chang près de Lankong, 7 Aug. 1883 , J.M. Delavay 128 (K!, P06810941!). – Note: this variety is mainly characterized by the long glandular trichomes especially on the petioles. Specimens of Delavay bearing the Delavay’s original number 128 (see Holstein & Weigend 2016a ) were likely collected at different localities. Burkill, however, only cited one of these gatherings, being “gorges of Lanho near Lankong”. The collections from “les bois à Yang in Chan près Lankong” from the same date (K!, P06810941!) are not syntypes , but may be regarded as original material. However, they differ in being somewhat tomentose and lacking glandular trichomes on the petioles and the lower leaf lamina, linking to C. yunnanensis . The specimen chosen as a lectotype here shows the double-serrate bract margin as a name-giving character for this taxon, as well as the young male catkins that typically develop in C. heterophylla as the fruits mature. C. kweichowensis Hu , Bulletin of the Fan Memorial Institute of Biology n.s. , 1: 149 ( Hu 1948 ). – Type : China , Kweichow [ Guizhou ], Ichaipa, Longli County [ ƭ$5 ], 6 Jul. 1930 , Y. Tsiang [ ƚƛ ] 8441 (lecto-, designated here: PE00021973!; isolecto-: PE00734547!). – Note: the collection number 8411 in the protologue is mistaken, because Y. Tsiang 8411 is a species of Pyrus , conversely Y. Tsiang 8441 is a Corylus and matches the other collection data from the protologue. Corylus kweichowensis is regarded by Liang (1988) as a distinct species (with a distinct C. heterophylla var. sutchuensis ) and treated as such in the Flora Sichuanica (Editorial Board of the Flora Sichuanica 2012 ). C. kweichowensis var. brevipes W.J.Liang , Bulletin of Botanical Research. Harbin 8 (4): 117 ( Liang 1988 ). – Type : China , Jiangxi , 990 m a.s.l., 18 Sep. 1984 , W.J. Liang 84001 (holo-: IFP03404999za001!).