Diameter averages of the pollen grains of Amorimia and outgroups. A. Diameter I. B. Diameter II. Circles show the arithmetic average of the diameter values of pollen grains and their variation limits represented by the confidence interval. A. camp. = Amorimia camporum; A. conc. = Amorimia concinna; A. amaz. = Amorimia amazonica; A. sept. = Amorimia septentrionalis; A. cori. = Amorimia coriacea; A. pubi. = Amorimia pubiflora; A. rigi. = Amorimia rigida; Ma. cord. = Mascagnia cordifolia; A. exot. = Amorimia exotropica; A. mari. = Amorimia maritima; A. pell. = Amorimia pellegrinii; Ec. soej. = Ectopopterys soejartoi. A. cand. = Amorimia candidae; A. kari. = Amorimia kariniana; A. velu. = Amorimia velutina.