Abstract: A new and distinct plant variety of the Cactaceae family arising as a spontaneous mutation of Hatiora x graeseri `Evita`, is distinguishable from its progenitor by larger flowers, larger pollen grains, larger and thicker phylloclades, reduced branching, and a flower longevity of about 8 days. The new variety, termed `Avalon`, is a stable periclinal cytochimera with a diploid epidermis and tetraploid subepidermis. Seeds produced by `Avalon` plants (`Avalon` S1 seeds) can be germinated to yield plants that have the same morphological characteristics as `Avalon` itself. Moreover, sexually and asexually reproduced progeny of `Avalon` S1 seeds also resemble `Avalon.

Abstract: A new and distinct plant variety of the Cactaceae family arising as a spontaneous mutation of Hatiora.times.graeseri `Evita`, is distinguishable from its progenitor and related varieties by its larger flowers, larger pollen grains, larger and thicker phylloclades, reduced branching, and a flower longevity of about 8 days. The new variety is a stable periclinal cytochimera with a diploid epidermis and tetraploid subepidermis. The new variety exhibits greater resistance to stem breakage due to its more robust phylloclades.