Morfoanatomia e aspectos da biologia floral de Myrcia guianensis( Aubletet ) A. P. de Candolle e de Myrcia laruotteana Cambesse( Myrtaceae )

Pires, Marilene Mieko YamamotoSouza, Luiz Antonio de

Myrciaguianensis (Aubletet) A. P. de Candolle and Myrcia laruotteana Cambesse are species thatoccur in riparian forests of the Paraná river. The floral morphology and structure, anthesis,anther dehiscence, stigma receptivity and the records of visitor insects are the objectives ofthis paper. The perianth has mesophyll homogeneous and the ovary is inferior of carpellaryand hypanthium nature. The bitegmic and crassinucelate ovules are anatropous inM. guianensis and campylotropous in M. laruotteana. The anthesis is nocturnal. The anthersdehisce at night and the stigma receptivity is prolonged during the entire morning. Themost frequent visitor insects are Apis mellifera and Trigona spinipes.(AU)

1. vegetação ripária
2. riparian forest
3. Apis melifera