Thelocactus macdowellii

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Thelocactus macdowellii (Rebut ex Quehl) W.T.Marshall in Cact. J. (London) 9: 28. 1947 sec. Hunt 20161

≡Echinocactus macdowellii Rebut ex Quehl in Monatsschr. Kakteenk. 4: 133. 1894 syn. sec. IPNI 2000+2
≡Echinomastus macdowellii (Rebut ex Orcutt) Britton & Rose, Cactaceae 3: 151. 1922 syn. sec. TROPICOS 1988+3
≡Thelocactus macdowellii (Rebut ex Quehl) Glass in Cact. Suc. Mex. 14: 4. 1969 syn. sec. TROPICOS 1988+3
≡Neolloydia macdowellii (Rebut ex Quehl) H.E.Moore in Baileya 19: 166. 1975 syn. sec. ???
≡Neolloydia mcdowellii (Rebut ex Quehl) H.E.Moore in Baileya 19: 166. 1975 syn. sec. TROPICOS 1988+3
≡Thelocactus conothelos var. macdowellii (Rebut ex Quehl) Glass & R.A.Foster in Cact. Succ. J. (Los Angeles) 49: 220. 1977 syn. sec. Hernández & Gómez-Hinostrosa 20214

1. Hunt, D.R. 2016: CITES Cactaceae Checklist. 3rd edition. – published by the author, 2. IPNI 2000+: International Plant Names Index. – The Royal Botanic Gardens, Kew, Harvard University Herbaria & Libraries and Australian National Botanic Gardens – http://www.ipni.org, 3. TROPICOS 1988+: Tropicos.org. Missouri Botanical Garden – https://tropicos.org, 4. Hernández, H.M. & Gómez-Hinostrosa, C. 2021: Revisions of Acanthocereus, Acharagma, Ariocarpus, Astrophytum, Aztekium, Bergerocactus, Cumarinia, Cylindropuntia, Echinocactus, Escontria, Grusonia, Lophophora, Mammillaria p.p., Melocactus p.p., Myrtillocactus, Neolloydia, Opuntia p.p., Peniocereus p.p., Sclerocactus, Thelocactus, Turbinicarpus p.p. – In: Korotkova N. & al., Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family. – Willdenowia 51: 251-270. http://doi.org/10.3372/wi.51.51208

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