SUPPLEMENTARY NOTES ON THE AMERICAN SPECIES OF STRYCHNOS. XIV. B. A. Krukoff^^^ Contents Introduction •• 30^ Tendrils 3O6 Discussion of spp. of sect. Strychnos (# 1-38) 3O7 " " " Rouhamon (#39-48) 3I5 " " Breviflorae (#49-71) 316 Appendix VII (Supplement) Changes in the identifications 3I8 List of Exsiccatae 319 Bibliography 322 Introduction At the time when I was working on the first Monograph of Strychnos in 1941, I never thought that the genus in the Americas would grow so much. I proved wrong when I suggested that only a few novelties were to be expected. Adolpho Ducke took me to task for this statement in several of his papers. The first monograph dealt with 46 species and one variety, Two of these species, namely, S. smithiana and S. longisepala ^ have since been reduced to synonymy. In the second revision, published in September 1972, I recognized 70 species and two varieties, all of which are valid. Presently, the genus in the Americas contains 74 species and two varieties. Since the last of this series of papers was submitted for publication in 1973, 179 new collections have been examined. The newly examined collections added to our knowledge of many species; extensions of ranges are noted for 38, and one new species, Strychnos croatii Krukof f & Barneby. is described. The most important additions concern Strychnos xinguensis (we have been waiting for the second collection in flower and the first collection in fruit since 1942) and S. fendleri collected by Dr. J. Murca Pires in a most unexpected place -Roraima. S. fendleri was previously known only from the ^•'■^Consulting Botanist of Merck Sharp & Dohme Research Laboratories, Rahway, New Jersey, and Honorary Curator of New York Botanical Garden, 305
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