Luehea microcarpa var. polymorpha Hassler (1910: 43) .

Type:— PARAGUAY. San Luis, 1908-1909, Fiebrig 5153 (holotype G [G00636902, 4 sheets], photo in F! [negative number 23813]; isotypes GH! [GH00268172], L! [L2352813]).

According to the Art. 8.3 of the ICN, the holotype collection of L. microcarpa var. polymorpha is a multiple preparation, since it was mounted in four sheets, gathering samples morphologically similar and at the same fertility stage, with only one original label from Fiebrig.