Phaseolus neglectus F.J. Hermann (1948: 238) [clade A; sect. Digitati Freytag].

TYPE: CH Muller 2881 (HOLOTYPE: NA-227795, now US-2216220 since transfer in 1953) .

In the original publication Frederick Joseph Hermann noted the “corolla … pale salmon to light blue”. Alfonso Delgado-Salinas (1985, p. 198) defined two races, interestingly “not been found growing intermixed”.With the specimens available, field work and the cultivation of several materials of this section, the author now considers race A corresponding to the species described by Hermann, and race B to P. albiflorus . A couple of populations have been sampled recently (Acosta-Díaz et al. 2015).

Specimens: MEXICO. Nuevo León: R Rodríguez 377 (ANSM-5423). Tamaulipas: OL Briones s.n. (ANSM-31020).