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Morfo-anatomia do fruto (hipanto, pericarpo e semente) em desenvolvimento de Pereskia aculeata Miller (Cactaceae)

2003; Editora da Universidade Estadual de Maringá (Eduem); Volume: 25; Issue: 2 Linguagem: Inglês

10.4025/actascibiolsci.v25i2.2046

1807-863X

Luiz Antônio de Souza, Sônia Maciel da Rosa,

Plant Diversity and Evolution

The development of Pereskia aculeate Miller fruit (hypanthium, pericarp and seed) was analyzed. The flower is perigynous and presents a hypanthium with bracteoles and aculeus. The fruit is pomaceous, type cactídio, with succulent hypanthium, pericarp, and seeds immersed in a gelatinous mass. This gelatinous mass originates from the pericarp and the columella. The seed is exotestal and develops from an amphitropous, bitegmic and crassinucelate ovule. It has perisperm and an endosperm residue. The embryo is curved and is composed of elongated hypocotyl-radicle axis, two cotyledons with uniform mesophyll, and undifferentiated plumule