Leucostele terscheckii
Leucostele terscheckii in Cactaceae Syst. Init. 28: 29. 2012 sec. Schlumpberger 20121
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Notes
Echinopsis valida was interpreted as related to or identical with what is now Acanthocalycium rhodotrichum or A. leucanthum (e.g. Schumann 1899, Britton & Rose 1922). As the protologue is not clearly assignable to any accepted taxon, we treat E. valida Monv. ex Salm-Dyck as a name of uncertain application (nomen dubium). But while Salm-Dyck (1850) described E. valida a rather low-growing plant ("caule subellipsoideo"), a second, different interpretation comes from Backeberg (1955), who assumed that Monvilles / Salm-Dyck’s description was based on a juvenile plant of a columnar Trichocereus. Backeberg’s Trichocereus validus (Monv. ex Salm-Dyck) Backeb. is clearly similar to Leucostele terscheckii, based on his description and photos. The name is often used for such plants in living collections. In absence of more evidence, T. validus is here treated as synonym of Leucostele terscheckii.A
Bibliography
A. Schlumpberger, B. 2021: Revisions of Acanthocalycium, Echinopsis, Leucostele, Lobivia, Setiechinopsis, Soehrensia, Reicheocactus, Trichocereus. – 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