BioStor
 | Three new species of Passiflora (Passifloraceae) from Ecuador and notes on Passiflora viridescens John Macdougal and Peter Jørgensen Novon 7: 379-386 |
 | Additional Panamanian Passifloraceae Alwyn H Gentry (1976) Annals of the Missouri Botanical Garden 63: 341-345 |