Rodriguésia (Mar 2021)

Pollen morphology and its systematic value to southern South American species of Lepidaploa (Vernonieae: Asteraceae)

  • Danilo Marques,
  • Gisela Mariel Via do Pico,
  • Jimi Naoki Nakajima,
  • Massimiliano Dematteis

DOI
https://doi.org/10.1590/2175-7860202172017
Journal volume & issue
Vol. 72

Abstract

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Abstract Palynological data have been used in Vernonieae for generic and specific delimitations, particularly in the Lepidaploinae subtribe. For this reason, pollen studies in the genus Lepidaploa are important to solve taxonomic conflicts. We characterized 23 species of Lepidaploa searching for morphological differences among themselves. We then compared the data obtained with other genera of the Lepidaploinae. The results show that the species have pollen type “C” (with polar lacuna) or “G” (without polar lacuna), oblate-spheroidal, subprolate or prolate-spheroidal, 3-colporate and equinolophate. The pollen types and shape of pollen grain are taxonomically useful. Pollen morphology is useful to distinguish species and genera of Lepidaploinae. Together with macromorphological data it is possible to delimit Lepidaploa and the species studied here.

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