Author:Michael W. Hawkes Contents 1 Affiliation 1.1 Institution 1.2 Location 2 Treatments Affiliation Affiliation information has been provided by Volume 4. Institution University of British Columbia Location Vancouver, British ColumbiaTreatments CCactaceae subfam. Pereskioideae EEpiphyllum Epiphyllum phyllanthus Epiphyllum phyllanthus var. hookeri HHylocereus H cont.Hylocereus undatus PPereskia Pereskia aculeata Pereskia grandifolia Pereskia grandifolia var. grandifolia SSelenicereus Selenicereus grandiflorus Selenicereus pteranthus Selenicereus spinulosus