Pilocarpus pennatifolius Lem. (Rutaceae) presents actinomorphics, dichlamydeous, nectariferous and monoclinous flowers, disposed in pendulous racemes. The anthesis is basipetal in the inflorescence and it is preferentially nocturne. The flower presents five stamens with tetrasporangiate anthers. The anther wall presents epidermis, endothecium, two middle layers and binucleate tapetum; the connective shows epidermis with stomata. The unipistilate gynoecium and compound by five carpels, which are joined at the base of the ovary and at the style and stigma. The style is short and solid and the stigma presents a papilose epidermis. The hemitropous, bitegmic and crassinucelate ovule presents a hypostasis and an obturator, which arises from funicle. The nectary surrounds completely the ovary base. Each sepal receives three vascular traces and the petals and stamens one trace. Each carpel receives a dorsal vascular bundle and two vascular ventral bundles that maintain their individuality throughout their course.
anatomy; anthesis; flower; Pilocarpus pennatifolius; Rutaceae
