Echinocereus salm-dyckianus

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Echinocereus salm-dyckianus

Echinocereus salm-dyckianus Scheer in Bot. Voy. Herald: 291. 1856 sec. Hunt 2016
    • =Cereus salm-dyckianus Hemsl. in Biol. Cent.-Amer., Bot. 1(6): 545. 1880 syn. sec. Rischer 2016
    • =Echinocereus salmianus Rümpler, Handb. Cacteenk., ed. 2: 809. 1885 syn. sec. Rischer 2016
    • =Cereus salmianus J.F.Cels in Weber, Dict. Hort.: 472. 1896 syn. sec. Rischer 2016
    • =Echinocereus salmianus K.Schum., Gesamtbeschr. Kakt.: 255. 1897 syn. sec. Rischer 2016
    • =Echinocereus salm-dyckianus var. noctiflorus Heid in Leafl. W. Bot. 4: 27. 1944 syn. sec. Rischer 2016
    • =Echinocereus scheeri var. obscuriensis A.B.Lau in Kakteen And. Sukk. 40: 36. 1989 syn. sec. Rischer 2016
    • Echinocereus salm-dyckianus subsp. obscuriensis (A.B.Lau) W.Blum in Echinocereenfreund 7: 82. 1994 syn. sec. Rischer 2016
    • Echinocereus salm-dyckianus f. obscuriensis (A.B.Lau) W.Rischer & Trocha in Echinocereenfreund Sonderausg. 1999: 10. 1999 syn. sec. Rischer 2016
    • Echinocereus scheeri subsp. obscuriensis (A.B.Lau) U.Guzmán in Cactaceae Syst. Init. 16: 17. 2003 syn. sec. Rischer 2016
    • =Echinocereus scheeri subsp. rischeri R.C.Römer in Echinocereenfreund 17: 8. 2004 syn. sec. Sánchez 2021
    • Echinocereus rischeri (R.C.Römer) W.Rischer in Echinocereenfreund 20: 118. 2007 syn. sec. Sánchez 2021

    Notes

    Taylor (1985) and Sánchez & al. (2013) suggest that E. salm-dyckianus and E. scheeri represent the same species. However, chromosome numbers suggest that E. scheeri is diploid,while E. salm-dyckianus is tetraploid (Rischer 2016). The morphology of the tetraploid E. rischeri overlaps to E. salm-dyckianus and both inhabit the same geographical region (at Sierra Madre Occidental, mainly Chihuahua and Sonora, Mexico). Although differences in flower opening are reported (night vs all day opening), they are not mutually exclusive. So, in the absence of phylogenetic or statistical data, E. rischeri and E. salm-dyckianus are treated here as belonging to the tetraploid lineage.A

    Bibliography

    A. Sánchez, D. 2021: Revision of Echinocereus – In: Korotkova N. & al., Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family. – Willdenowia 51(2): 250-270