Composição florística e síndromes de polinização e de dispersão da mata do Sítio São Francisco, Campinas, SP, Brasil

Abstract

A floristic survey of the seasonal semi-deciduous forest located in the Sítio São Francisco was undertaken, together with studies of pollination and dispersion syndromes of the species. A total of 46 families, 116 genera and 148 species (50 trees, 35 lianas, 26 shrubs and 37 herbs) was found. The richest families in number of arboreal species were Euphorbiaceae (8), Fabaceae (7), Meliaceae (6) and Rutaceae (5). The lianas were distributed mainly in the following families: Bignoniaceae (13), Sapindaceae (5) and Malpighiaceae (3), while in the herbaceous plants, the richest families were Poaceae (8) and Asteraceae (5), and among the shrubs were Piperaceae (7) and Rubiaceae (5). The most frequent pollination and dispersion syndromes were respectively, melittophily (73%) and zoochory (63%), both predominating in the sub-arboreal stratum. More than one type of pollination syndrome was observed in some species. Comparing data from this study with seven surveys carried out in the municipality of Campinas, Sítio São Francisco forest showed an intermediate position between the hygrophilous formations and the seasonal semi-deciduous forests as well as the occurrence of some exclusive arboreal and lianas species.