2025

Gymnocalycium gaponii Neuhuber subsp. occidentale Neuhuber & V. Gapon subsp. nov. 2025
Neuhuber, G.; Gapon, V. (2025): Gymnocalycium gaponii vs G. taningaense - Kaktus Klub 9(1): p. 45-59.
Type: Argentina, Province Córdoba, El Potrero, 1095 m a.s.l., leg. V. Gapon 29.11.2012, WU Inventar Nr. 3227, dry plant VG12-309 5351/21 [Holotype].
Paratypes: WU Inventar Nr. 3702, flower VG06-309 3136/4 in alcoholic preserving liquor; WU Inventar Nr. 3788, flower VG08-309 4036/8 in alcoholic preserving liquor; WU Inventar Nr. 3807, flower VG10-308 4739/2 in alcoholic preserving liquor; WU Inventar Nr. 3808, flower VG12-308 5320/1 in alcoholic preserving liquor.

Gymnocalycium taningaense Piltz subsp. lukasikii (J. J. Halda et Kupcák) Neuhuber & V. Gapon stat. nov. 2025
Neuhuber, G.; Gapon, V. (2025): Gymnocalycium gaponii vs G. taningaense - Kaktus Klub 9(1): p. 45-59.
Type: Argentina, Prov. San Luis, Sierra del Morro, 900 m a.s.l., leg. J. Procházka 24.11.1992 JPR 100/237 (PR, holo).
Basionym: Gymnocalycium lukasikii J. J. Halda et Kupcák, Acta Mus. Richnoviensis Sect. Natur. 7(2): 72 (2000).

Gymnocalycium fuschilloi (Neuhuber) Neuhuber & V. Gapon stat. nov. 2025
Neuhuber, G.; Gapon, V. (2025): Gymnocalycium gaponii vs G. taningaense - Kaktus Klub 9(1): p. 45-59.
Type: Argentina, Provincia de Córdoba, south of Arroyo San Antonio, 630 m a.s.l., leg. G. Neuhuber GN 90-240, 15. December 1990, Holotypus: BA.
Basionym: Gymnocalycium taningaense subsp. fuschilloi Neuhuber, Gymnocalycium 20(1): 705 (-706) (2007).

Gymnocalycium roboreanum (Schädlich) Barfuss & Schädlich, comb. et stat. nov. 2025
Barfuss, Michael H. J.; Schädlich, Volker (2025): First, new findings based on molecular-genetic studies and the re-evaluation of morphological characteristics within the genus Gymnocalycium subgenus Muscosemineum - Schütziana 16(2): p. 5-10.
Basionym:—Gymnocalycium marekiorum var. roboreanum Schädlich, Schütziana 12(3): 19 (2021), type:—V. Schädlich VoS 03-45 (holo WU 0169777, http://wu.jacq.org/WU0169777).
= Gymnocalycium damsii var. centrispinum Backeb. ex H. Till & Amerh., Gymnocalycium 17(1): 555 (fig. 22–23) (2004), type:—H. Amerhauser HA 95-981a (holo LPB).
= Gymnocalycium damsii var. centrispinum Backeb., nom. inval., Descr. Cact. Nov. [Backeberg] 3: 6 (1963).

Gymnocalycium tucavocense (Backeb. ex H. Till & Amerh.) Barfuss & Schädlich, comb. et stat. nov. 2025
Barfuss, Michael H. J.; Schädlich, Volker (2025): First, new findings based on molecular-genetic studies and the re-evaluation of morphological characteristics within the genus Gymnocalycium subgenus Muscosemineum - Schütziana 16(2): p. 5-10.
Basionym:—Gymnocalycium anisitsii var. tucavocense Backeb. ex H. Till & Amerh., Gymnocalycium 17(1): 559 (2004) illus. fl., type:—H. Amerhauser HA 95-984 (holo LPB).
≡ Gymnocalycium anisitsii subsp. tucavocense (H. Till & Amerh.) Schädlich, Schütziana 12(2): 25 (2021).
= Gymnocalycium damsii var. tucavocense Backeb., nom. inval., Descr. Cact. Nov. [Backeberg] 3: 6 (1963).
= Gymnocalycium damsii subsp. evae Halda, Horácek & Milt, Acta Mus. Richnov., Sect. Nat. 9(1): 58(–59; fig. 69) (2002), type:—J. J. Halda & L. Horácek, 20.11.1999 (holo PR 11.701).

Gymnocalycium multiproliferum (P. J. Braun) Barfuss & Schädlich, comb. et stat. nov. 2025
Barfuss, Michael H. J.; Schädlich, Volker (2025): First, new findings based on molecular-genetic studies and the re-evaluation of morphological characteristics within the genus Gymnocalycium subgenus Muscosemineum - Schütziana 16(2): p. 5-10.
Basionym:—Gymnocalycium damsii var. multiproliferum P. J. Braun, Kakteen And. Sukk. 41(10): 230, 5 figs. (1991), type:—P. J. Braun 230 (holo ZSS, iso ZSS, B).
≡ Gymnocalycium anisitsii subsp. multiproliferum (P. J. Braun) P. J. Braun & Esteves, Succulenta (Netherlands) 74(3): 131 (1995).