NOTES ON THE SPECIES OF ERYTHRINA. IX, B. A. Krukoff ( ' Contents Introduction 1 Discussion of species (#1-108) and of hybrids 1 Bibliography (supplement) 10 Introduction Eight papers covering the morphology, distribution, chromo-somes, palynology, alkaloids, and amino acids of Erythrina were published in the September and December 1974 issues of Lloydia . A supplement to the symposium is planned for publication, also in Lloydia , sometime in 1977. I have written a brief paper for this supplement to the symposium, but this present paper includes information which is best published separately. Four hundred eighty-nine new collections were examined in connection with the preparation of these two papers. For a list of species reduced to synonymy, extensions of ranges, etc., see my paper which is to be published in the supplement to the symposium. 1. Erythrina fusca Loureiro, Fl. Cochinch. 427. 1790. I have seen the following collections from the New World: Belize: L. Dieckman 196 (MO). Panama: Colon: R. L. Wilbur 11169 (MO). Venezuela: Merida: Luis Ruiz Teran 493 (MO). Colombia: Choco: Al . Gentry 9286 ; Cundinamarca: E. Forero et al . 417 . Ecuador: Guayas: L. Holm-Nielsen et al . 7238 (AAU). Surinam: Landsbosh 136 (MO). Brazil: Amazonas : Prance et al . 23520 ; Bento S. Pena s.n . (March 21, 1975) (MO). The following collections from the Old World were available: Tonga: M. Hotta 5105 (TI), 5466 (TI) . Two other collections from Guayas, Ecuador, were examined but are not cited here. Consulting Botanist of Merck Sharp & Dohme Research Laboratories, Rahway, New Jersey, and Honorary Curator of the New York Botanical Garden. 1