Biologia floral e sistema de reprodução de Jacquemontia multiflora (Choisy) Hallier f. (Convolvulaceae)

• Autor(a) principal: Piedade-kiill, Lúcia Helena
• Data de Publicação: 2000
• Outros Autores: Ranga, Neusa Taroda [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1590/S0100-84042000000100004; http://hdl.handle.net/11449/212609
• topic: Floral biology; reproductive system; Jacquemontia multiflora

The present study deals with the aspects of phenology, floral biology and reproductive system of Jacquemontia multiflora, a caatinga species at the Fazenda Catalunha, Santa Maria da Boa Vista - PE. The species is an annual liana, with cornucopia pattern of flowering. The peak of flowering occurs between the end of March begining of April at the end of the wet season. Its cymose inflorescences have the main axes elongated, exposing the flowers well out the foliage leaves. The blue flowers are shallow campanulate, scentless and producing a very low quantity of nectar. Anthesis is diurnal, the flowers beggin to open at around 05:30h., are ephemeral, lasting for about nine hours. The most frequent visitors are bees (Apidae and Halictidae). Apis mellifera and Trigona spinipes were considered the main pollinators of this species. J. multifora is facultatively autogamous, producing fruits either after self (30%) and cross (60%) manual pollination.