Neltuma palmeri Britton & Rose, in N.L. Britton & al. (eds.), N. Amer. Fl. 23: 185. 1928.

Prosopis tamaulipana Burkart, J. Arnold Arbor. 57: 494. 1976.

Type material.

Mexico. Tamaulipas: vicinity of Victoria, E. Palmer 400 (holotype: NY [NY00005077]; isotypes: CM [CM1060], GH, MO [MO-356247], US [US00000993]).

Although the nom. nov. P. tamaulipana Burkart was required when Neltuma palmeri Britton & Rose was transferred to Prosopis because the name Prosopis palmeri S. Watson (= Strombocarpa palmeri (S.Watson) C.E. Hughes & G.P. Lewis) was already occupied, the original N. palmeri provides a valid accepted name.