1.
Passiflora Passionflowers of the World
by Ulmer, Torsten, MacDougal, ...
ISBN: 9780881926484
List Price: $44.95
2.
Revision of Passiflora Subgenus Decaloba Section Pseudodysosmia, Passifloraceae
by MacDougal, John M., Anderso...
ISBN: 9780912861418
List Price: $20.00