The tribe Juanulloeae has traditionally consisted of nine genera of rarely collected, epiphytic shrubs and small trees: Juanulloa, Markea, Schultesianthus, Trianaea, Dyssochroma, Hawkesiophyton, Rahowardiana, Ectozoma, and Merinthopodium. Here we present the results of a cladistic study of the relationships of the species of these genera and provide a conspectus of the genera as we define them. The number of genera in our treatment is reduced to six: Dyssochroma, Juanulloa, Markea, Merinthopodium, Schultesianthus, and Trianaea. Included in the key and conspectus is the genus Solandra, which at present is treated as a separate tribe, Solandreae. We also discuss the groupings on the tree and point out areas for future research in this group. A key to the genera is provided and for each genus a list of component taxa and their distributions is also given. Many of these genera have previously been illustrated, but illustrations are provided for some of the previously unillustrated taxa or for taxa where illustrations are difficult to find.