Aristolochia trilobata Linnaeus, Species Plantarum 2: 960. 1753.

"Habitat in America meridionali." RCN: 6947.

Type not designated.

Original material: [icon] in Marggraf, Hist. Rer. Nat. Bras.: 15. 1648.

Current name: Aristolochia trilobata L. ( Aristolochiaceae).

Note: Pfeifer (in Ann. Missouri Bot. Gard. 53: 144. 1966) indicated 1071.1 LINN as type, and was followed by e.g. González (in Fl. Colombia 12: 127. 1990), Feuillet & Poncy (in Fl. Guianas, ser. A, 10: 17. 1998) and Rankin (in Fl. Republ. Cuba,, ser. A, 1(2): 18. 1998). However, Rankin & Greuter (in Taxon 48: 686-687. 1999) conclude that both specimens on the sheet are post-1753 additions (one from von Rohr, the other from Rolander) and hence ineligible as types. Overlooking the existence of Marggraf’s illustration, they designate a neotype (having dismissed Pfeifer’s statement as a neotypification because he did not distinguish between the two specimens on the sheet). However, their choice is inadmissable.