This paper presents pollen morphology of 12 native Brazilian species of Rutaceae from forest fragments of São Paulo, Brazil. The aim of this research is to expand the morphological knowledge of the species, thus contributing to taxonomic knowledge and, subsequently, conservation of species and the forest area. The pollen grains were acetolyzed, measured, described qualitatively, and illustrated using light microscopy (LM) and scanning electron microscopy (SEM). The studied species have differences in polarity, size, shape, aperture and exine ornamentation of the pollen grains, confirming the eurypalynous character of Rutaceae pollen. In particular, species of Zanthoxylum L. also presented significant differences in the pollen grains, confirming the morphological variation within the genus. The quantitative data and multivariate analysis confirm the morphological description; thus, the results reinforce the importance of pollen morphology in the identification and characterization of species of Rutaceae.
stomatal conductance, leaf area, leaf anatomy measures (width of palisade and spongy parenchyma, length of central vein, adaxial and abaxial width of central vein, length of vascular bundle, width of vascular bundle), and stem diameter. A higher tolerance was observed in BRS Valiosa RR to moderate hydric deficit conditions when they occurred in soybean stage V2. The BRS Valiosa RR cultivar presents a better morphologically and anatomically adaptive response to moderate hydric restrictions of up to (−0.07 MPa) when they occur in the first weeks of plant development.
-(Pollen flora of "Reserva do Parque Estadual das Fontes do Ipiranga" (São Paulo, Brazil). Family: 136-Solanaceae). Pollen grains of 12 genera and 41 species of Solanaceae occurring in the "Reserva do Parque Estadual das Fontes do Ipiranga" were examined: Acnistus arborescens (L.) Schlecht., Athenaea picta (Mart.) Sendtn., Brunfelsia latifolia Benth., Brunfelsia pauciflora
IntroduçãoEste trabalho faz parte do projeto elaborado por Melhem et al. (1984), que visa realizar a caracterização morfológica dos grãos de pólen das famílias ocorrentes na Reserva do Parque Estadual das Fontes do Ipiranga (PEFI), complementando assim os estudos taxonômicos realizados na mesma área, segundo
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