16 New Nothogenera and 15 New Combinations in Hylocereeae (Cactaceae)

16 new nothogenera and 15 new combinations in Hylocereeae (Cactaceae) are proposed:

×Aporgera, ×Dialis, ×Differa, ×Dilectus, ×Dinocereus, ×Diphalocereus, ×Diselvia, ×Disivia, ×Disoquipa, ×Disuntia, ×Epivia, ×Heliara, ×Opuntara, ×Selenara, ×Selenbergera, ×Selivia 

×Aporodisocactus freiburgensis, ×Aporodisocactus krookii, ×Aporodisocactus mallisonii, ×Diphalocereus impossibilis, Disocactus ×amaranthinus, Disocactus ×charltonii, Disocactus ×coopermannii, Disocactus ×hansii, Disocactus ×jenkinsonii, Disocactus ×splendens, ×Disoselenicereus fulgidus f. neubertii, ×Disoselenicereus nothus, ×Disoselenicereus wrayae, Selenicereus pteranthus f. ×kewensis, ×Seleniporocactus albus