Three new fern names of hybrid genera and four new combinations in Athyriaceae, Osmundaceae, and Thelypteridaceae Author Wan, Xia 0000-0001-8312-6917 Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China & College of Life Sciences, Sichuan University, Chengdu 610065, China & University of Chinese Academy of Sciences, Beijing 100049, China & Missouri Botanical Garden, St. Louis, Missouri 63110, USA & xwan @ mobot. org; https: // orcid. org / 0000 - 0001 - 8312 - 6917 xwan@mobot.org Author Zhang, Li-Bing 0000-0002-4905-040X Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China & Missouri Botanical Garden, St. Louis, Missouri 63110, USA & Libing. Zhang @ mobot. org; https: // orcid. org / 0000 - 0002 - 4905 - 040 X hang@mobot.org text Phytotaxa 2022 2022-12-06 575 1 104 108 http://dx.doi.org/10.1094/PDIS-04-22-0755-PDN journal article 203356 10.11646/phytotaxa.575.1.8 c8bdb5c9-8e03-4b2f-8ead-ca3fd948c178 1179-3163 7403356 × Glaphyrocyclosorus erubesquirolicus (W.C.Shieh & J.L.Tsai 1987: 7) X.Wan & Li Bing Zhang , comb. nov. Basionym: Thelypteris × erubesquirolica W.C.Shieh & J.L.Tsai (1987: 7) ≡ Cyclosorus × erubesquirolicus (W.C.Shieh & J.L.Tsai) J. Mazumdar (2013: 398) ≡ “ × Glaphypseudosorus erubesquirolicus (W.C.Shieh & J.L.Tsai) Hong M.Liu, Schuettp. & H.Schneid. ” (2020: 1000), nom. inval . Type :— Taiwan Island : Nantou Hsien , Wanghsiang , 17 December 1984 , J.-L.Tsai T10379a-d ( TCF ) . Notes: This nothospecies is a hybrid between Glaphyropteridopsis erubescens (Wallich ex Hooker 1863: 236 ) Ching (1963: 320) and Pseudocyclosorus esquirolii ( Christ 1907: 144–145 ) Ching (1963: 324) . This hybrid is an allotetraploid with 72 bivalent chromosomes, which has intermediate morphology of the parents ( Shieh & Tsai 1987 ). Distribution: Taiwan Island .