The flower structure of Solanum caavurana Vell. (Solanaceae) and aspects of the pollination biology

Tamara Francislaine Santana 1, Odair José Garcia de Almeida 2 and Luiz Antonio de Souza 1, *

1 Graduate Program in Comparative Biology, State University of Maringá, Avenida Colombo, 5790, (87020-900) Maringá, Paraná, Brazil.
2 Institute of Biosciences, Paulista State University Júlio de Mesquita Filho, Experimental Campus do Litoral Paulista, São Vicente, São Paulo, Brazil.
 
Research Article
International Journal of Life Science Research Archive, 2023, 04(01), 108–116.
Article DOI: 10.53771/ijlsra.2023.4.1.0016
Publication history: 
Received on 08 December 2022; revised on 24 January 2023; accepted on 26 January 2023
 
Abstract: 
Aspects of the pollination biology and floral characteristics of Solanum caavurana Vell. Were investigated in a semidecidual seasonal forest fragment in Paraná, Brazil. Anthesis was diurnal and the Pseudaugochlora bees have visited the flowers with more frequency than other species. Sepals and petals had homogeneous parenchymatous mesophyll. The young anther wall was composed of epidermis, two or three layers of endothecium, two middle layers and secretory tapetum. Anthers were poricidal and there was no functional longitudinal stomium. Ovary structure was simple and there was compitum with septum split. Ovules were hemicampylotropous, unitegmic and tenuinucellate with hypostase. The flower of S. caavurana followed the Solanum pattern described in the literature, and the pollination should be made by bees.
 
Keywords: 
Bees; Compitum; Floral anatomy; Hypostase
 
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