Monographs Details: Piptocarpha rotundifolia subsp. hatschbachii G.Lom.Sm.
Smith, Gerald L. & Coile, Nancy C. 2007. (Compositae: Vernonieae). Fl. Neotrop. Monogr. 99: 1--94. (Published by NYBG Press)
Discussion:The inflorescence and floral morphology are nearly identical to those of P. rotundifolia subsp. rotundifolia; however, the elliptic leaves readily distinguish P. rotundifolia subsp. hatschbachii from the orbicular-leaved specimens in the states of Goiás, Minas Gerais, and upper São Paulo.This subspecies was named in honor of Dr. Gert Hatschbach, Director of Museu Botânico Municipal, Curitiba, Paraná. Hatschbach, a leading authority on the phytogeography of southern Brazil, has collected extensively in many regions of Brazil.
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