Eperua purpurea Bentham (1870: 226)

Fortes, Elenice A. & Mansano, Vidal F., 2022, Untangling nomenclatural issues of some Amazonian trees of Eperua Aubl. (Leguminosae, Detarioideae, Detariae), Phytotaxa 542 (2), pp. 189-198 : 194-195

Eperua purpurea Bentham (1870: 226)

Lectotype (designated by Cowan 1975): — BRAZIL. Amazonas : Panuré , Rio Negro, Uaupés, September 1852, R. Spruce 2577 (K[000555096] image!; isolectotype P-flower[00835940] image!).

Residual syntypes: — BRAZIL. Amazonas: Panuré, Rio Negro, Uaupés, October 1852 – January 1853, R. Spruce 2577 (BM[000952280] image!, BR[0000005172238] image!, F[0057805] image!, G[00365214] image!, G[00365213] image!, GH[00339219] image!, K[000555097] image!, LE[00002233] image!, M?, NY[00004385] image!, P[00835939] image!, W[18890110503] image!, W[18890146287] image!), February 1853, R. Spruce 2577 (K[000555095] image!, P-fruit[00835940] image!), s.d., R. Spruce 2577 (RB[00539608]!).

Spruce 2577, which is the type collection of E. purpurea cited by Bentham (1870), combine collections made in three different dates: September 1852, October 1852 – January 1853, and February 1853. However, to comprise a single gathering, the specimens need to be collected on the same date ( Turland et al. 2018) and, thus, Spruce 2577 must be considered different collections. As Bentham (1870) did not specify the collection date, the exsiccate K000555096 with a handwritten annotation by Spruce is not the holotype as informed by Cowan (1975), and we correct here Cowan’s use of holotype to lectotype.