title: Pollen grain morphology of Fabaceae in the Special Protection Area (SPA) Pau-de-Fruta, Diamantina, Minas Gerais, Brazil.
abstract: The presented paper considered the pollen morphology of thirteen species belonging to seven genera of the Fabaceae family occurring in the Pau-de-Fruta Special Protection Area (SPA), Diamantina, state of Minas Gerais, Brazil. The pollen grains of six species of Chamaecrista [C. cathartica (Mart.) H.S. Irwin & Barneby, C. debilis Vogel, C. flexuosa (L.) Greene, C. hedysaroides (Vogel) H.S. Irwin & Barneby, C. glandulosa (L.) Greene, and C. papillata H.S. Irwin & Barneby] have a similar morphology, characterized by three long colporated apertures with a central constriction. The species share specific morphological features regarding pollen size, endoaperture type (circular, lalongate or lolongate) and SEM ornamentation patterns of the exine (rugulate with perforations or perforate). Andira fraxinifolia Benth., Dalbergia miscolobium Benth, Galactia martii DC, Periandra mediterranea (Vell.) Taub., Senna rugosa (G.Don) H.S. Irwin & Barneby and Zornia diphylla (L.) Pers showed different pollen types in small to large size; oblate spheroidal to prolate form; colpus or colporus apertures; circular, lalongate or lolongate endoapertures and distinctive SEM ornamentation patterns of the exine (perforate, microreticulate, reticulate or rugulate with perforations). Only Stryphnodendron adstringens (Mart.) Coville presents polyads. The pollen morphology variation of these species allowed the Fabaceae family to be characterized as eurypalynous in the SPA Pau-de-Fruta.
authors.affiliation: Instituto de Botânica, Núcleo de Pesquisa em Palinologia, 04301-902São PauloSP, Brasil.
authors.forename: Cynthia F P da
authors.initials: CF
authors.lastname: Luz
authors.affiliation: Instituto de Botânica, Núcleo de Pesquisa em Palinologia, 04301-902São PauloSP, Brasil.
authors.forename: Erica S
authors.initials: ES
authors.lastname: Maki
authors.affiliation: Departamento de Ciência do Solo, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, ESALQ/USP, 13418-900PiracicabaSP, Brasil.
authors.forename: Ingrid
authors.initials: I
authors.lastname: Horák-Terra
authors.affiliation: Departamento de Ciência do Solo, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, ESALQ/USP, 13418-900PiracicabaSP, Brasil.
authors.forename: Pablo
authors.initials: P
authors.lastname: Vidal-Torrado
authors.affiliation: Departamento de Ciências Biológicas, Universidade Federal dos Vales do Jequitinhonha e Mucuri/UFVJM, Campus JK, 39100-000DiamantinaMG, Brasil.
authors.forename: Carlos Victor
authors.initials: CV
authors.lastname: Mendonça Filho
mesh_terms: D001938:Brazil; D007887:Fabaceae / Q000033:anatomy & histology* / Q000145:classification / Q000648:ultrastructure; D008855:Microscopy, Electron, Scanning; D011058:Pollen / Q000033:anatomy & histology* / Q000648:ultrastructure; D013045:Species Specificity