Peireskia

In one genus, however, _Peireskia_, the stems are less succulent, and the leaves, though rather fleshy, are developed in the usual form.

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" Various

_Echinopsis_, _Phyllocactus_, _Epiphyllum_, &c.; while those with short-tubed flowers are _Rhipsalis_, _Opuntia_, _Peireskia_, and one or two of minor importance.

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" Various