Abstract
The pollen morphology of 12 Brazilian native species of Malpighiaceae from forest fragments was investigated in search to expand the morphological knowledge of the species analyzed thus contributing to its palynology, taxonomy, and conservation. The pollen grains were acetolysed, measured, photographed using light microscopy and scanning electron microscopy, and described qualitatively. The quantitative data were analyzed by descriptive statistics and multivariate statistics. The pollen grains are monads, apolar or isopolar, small to large, with circular to quadrangular amb, oblate-spheroidal to prolate-spheroidal, tricolporate with long colpi and lalongate endoaperture or 6–(7–8)-porate with or without colpoids and aspides, psilate-rugulate, rugulate or microreticulate exine, sexine thicker than nexine in most species. The results of this study point to differences in the morphology of the pollen grains in the analyzed species, which indicates Malpighiaceae as a eurypalynous family; this fact was also confirmed by quantitative data and the multivariate analysis. These data reinforce the importance of pollen morphology for identification and distinction of genus and species of the family.
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Acknowledgments
The authors thank the State of São Paulo Research Foundation (FAPESP—2013/11832-7) for the scholarship of the first author, Prof. Dr. F.J. Zara (DBAA–FCAV) by granting the optical photomicroscope used, and Profa. Dra. Luciane O. Crossetti (Instituto de Biociências—UFRGS) by help with the PCA programs.
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Appendix: Specimens examined
Appendix: Specimens examined
Banisteriopsis argyrophylla (A. Juss.) B. Gattes: BRASIL. São Paulo: Novo Horizonte, 25 Mar 2010, N.T. Ranga et al. F03 (SJRP); BRASIL. São Paulo: Sales, 24 May 2008, N.T. Ranga et al. 19 (SJRP); BRASIL. São Paulo: Votuporanga, 15 Mar 2008, N.T. Ranga et al. 26 (SJRP).
Banisteriopsis muricata Cavanilles: BRASIL. São Paulo: Barretos, 05 Mar 2009, N.T. Ranga et al. 21 (SJRP); BRASIL. São Paulo: Taquaritinga, 12 Mar 2009, N.T. Ranga et al. 02 (SJRP).
Banisteriopsis nummifera (A. Juss.) B.Gates: BRASIL. São Paulo: Jaboticabal, 14 Aug 1991, E.H.A. Rodrigues 141 (JABU).
Banisteriopsis oxyclada (A. Juss.) B. Gattes: BRASIL. São Paulo: Ida Iolanda, 30 Jun 2006, N.T. Ranga et al. 45 (SJRP); BRASIL. São Paulo: Macaubal, 05 Apr 2008, N.T. Ranga et al. 01 (SJRP); BRASIL. São Paulo: Onda Verde, 01 Jan 2007, N.T. Ranga et al. 14 (SJRP).
Byrsonima crassifolia (L.) Kunth: BRASIL. Minas Gerais: São Roque de Minas, Serra da Canastra, 14 Jun 2009, B.F. Bueno 005 (JABU).
Byrsonima intermedia A. Juss.: BRASIL. Goiás: Rio Verde, 11 May 2009, A.C. Lofego s/n. (SJRP 30024); BRASIL. Mato Grosso: Itiquira, 03 Jun 2003, R.D. Daud & P.R. Demite 37 (SJRP); BRASIL. São Paulo: Barretos, 21 Aug 2008, N.T. Ranga et al. 24 (SJRP); BRASIL. São Paulo: Bebedouro, 19 Feb 2009, N.T. Ranga et al. 28 (SJRP).
Byrsonima verbascifolia (L.) Rich.: BRASIL. Goiás: Edealina, 11 May 2009, A.C. Lofego s/n. (SJRP 30017); BRASIL. Mato Grosso: Itiquira, 03 Jun 2003, R.D. Daud & P.R. Demite 50 (SJRP).
Diplopterys pubipetala (A. Juss.) W. R. Anderson & C. C. Davis: BRASIL. São Paulo: Birigui, Fazenda Água Branca, 11 Aug 1999, Montilha et al. 31 (SJRP); BRASIL. São Paulo: Sales, Fazenda Água Clara, 24 Aug 1995, M.D.N. Grecco et al. 105 (SJRP).
Heteropterys aceroides Griseb.: BRASIL. São Paulo: Paulo de Faria, Estação Ecológica de Paulo de Faria, 23 Jun 1993, V. Stranghette 234 (SJRP); BRASIL. São Paulo: Paulo de Faria, Estação Ecológica de Paulo de Faria, 12 Jan 1994, V. Stranghetti 251 (SJRP).
Mascagnia cordifolia (A. Juss.) Griseb.: BRASIL. São Paulo: Campinas, Distrito de Souzas, 22 Jun 1996, K. Santos s/n. (SJRP 30104); BRASIL. São Paulo: José Bonifácio, antiga Fazenda Jacaré, 07 Apr 1995, M.R. Pietrobom da Silva 2270 (SJRP); BRASIL. São Paulo: São José do Rio Preto, Mata dos Macacos, 1 May 1999, F. Tomasetto s/n. (SJRP 29374).
Peixotoa tomentosa A. Juss.: BRASIL. São Paulo: Itirapina, cerrado de Itirapina, 07 May 1962, Homero do Amaral s/n (JABU514).
Stigmaphyllon lalandianum A. Juss.: BRASIL. São Paulo: Jaboticabal, 09 Mar 1991, E.H.A. Rodrigues 129 (JABU).
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Belonsi, T.K., Gasparino, E.C. Pollen morphology of Malpighiaceae from Brazilian forest fragments. Braz. J. Bot 38, 379–393 (2015). https://doi.org/10.1007/s40415-015-0134-1
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DOI: https://doi.org/10.1007/s40415-015-0134-1