Estrutura e aspectos da regenera？？o natural de Floresta Ombrófila Mista no Parque Estadual de Campos do Jord？o, SP, Brasil

the objective of this study was to evaluate the floristics and structural differences between adult and regenerating components of a stretch of mixed ombrophyllous forest at parque estadual de campos do jord？o, within the scope of raising hypotheses on its successional trajectory. in order to sample the adult component (cbh > 15 cm), 50 permanent plots of 10 × 20 m were allotted while five sub-plots of 1 × 1 m of the regenerating component (h > 30 cm and cbh < 15 cm) were allotted in each plot. in the adult component, 1,770 individuals were sampled, distributed in 58 species, 38 genus and 26 families (h' = 3.08 and j = 0.73). in the regenerating component, 576 individuals, 55 species, 39 genus and 23 families (h' = 3.41 and j = 0.84) were sampled. we have concluded that procedures for conservation of the coniferous are needed.