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Biologia reprodutiva de Jacquinia armillaris (Primulaceae): uma espécie endêmica das restingas Brasileiras

Mariana Andrich,M. Martins,L. D. Thomaz,Letícia Silva Brito,Rodrigo Lemes Martins

Published 2016 in Unknown venue

ABSTRACT

Jacquinia armillaris occurs in the coastal zone of Northeast and Southeast Brazil in greatly reworked estuarine landscapes. For a better understanding of the ecology of J. armillaris in its natural habitat, this study assessed the reproductive biology of this species in the restinga of Parque Estadual Paulo Cesar Vinha, Espirito Santo, Brazil. According to the data on flowering, floral morphology, stigmatic receptivity, reproductive system, pollen viability, and behavior of floral visitors, Jacquinia armillaris showed characteristics of cantarophily syndrome and is visited by two Coleopteras: Carpophilus sp. (Nitidulidae) and Horistonotus sp. (Elateridae). The data suggest that the species is self-compatible. However, J. armillaris depends on pollination promoted by floral visitors. Absence of agamospermy and clonal growth, plus low viable production of pollen, cantharophily and common restinga rigor are discussed as responsible factors for low fruit set, consequently producing stochastic variation in seed recruitment.

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