Abstract
We formally establish and clarify the application of the name ×Sedeveria ‘Blue Mist' (Mottram) Gideon F.Sm. & Bischofb., a cultivar selected from a hybrid between Sedum craigii R.T.Clausen and Echeveria affinis E.Walther (Crassulaceae). A similar hybrid was produced by Charles H. Uhl in the USA, but using Echeveria aff. affinis as one parent. We discuss ×Sedeveria ‘Blue Mist' in the context of Uhl's hybrid that was created for cytogenetics research purposes. ×Sedeveria ‘Blue Mist' is a small, rosulate to short-stemmed plant with visually striking blue-purple leaves and more or less uniformly bright crimson red flowers reminiscent of those of E. affinis, at least colour-wise. With age the flowers fade to whitish, a floral colour associated with S. craigii. Plants very slowly branch from the base, with the branches being leaning to creeping. The boatshaped, tapering, though often nearly cylindrical leaves of this cultivar are borne very densely in apical rosettes. The combination of these characters clearly separates this cultivar from other cultivars of ×Sedeveria E.Walther. The cultivar name ×Pachyveria ‘Blue Mist’ Mottram was previously published for the cultivar.
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