Aspidosperma williamii Duarte in Acta Amazon. 2(1): 29. 1972.

Holotype:— BRAZIL. Amazonas: Estrada Manaus-Itacoatiara, km 64, Reserva W. Egler, Rio Preto da Eva, 10 Sep 1970, W.A. Rodrigues 8938 (INPA (mounted on five herbarium sheets) [No. 28313!]; isotypes: F [barcode V0092489F image!], VEN [barcode VEN158456 image!]) .

Notes — Duarte (1972) indicated the gathering Rodrigues 8938 from the herbarium INPA as the holotype of A. williamii . Based on this information and the materials analyzed, we consider that the five preparations with this information in INPA (INPA No. 28313) belong to a single specimen mounted on five sheets since they share a single original label, received the same voucher and are physically kept together (ICN article 8.3, Ex. 9; Turland et al. 2018). It is worth mentioning that Duarte (1972) originally published this species as “ A. williamsii ” in honor of the collector William A. Rodrigues, but Brenan (1981) later corrected the name to A. williamii .