Pollen Development and Morphology in four Species of Pterocactus (Cactaceae)

Marina M. Gotelli; Agustina Scambato; Beatriz Galati; Roberto Kiesling

doi:10.5735/085.046.0505

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Marina M. Gotelli,¹ Agustina Scambato,¹ Beatriz Galati,¹ Roberto Kiesling²

¹1)Cátedra de Botánica Agrícola, Facultad de Agronomía, Universidad de Buenos Aires, San Martín 4453,
²2)Instituto de Botánica Darwinion, Labardén 200 y Estanislao del Campo, B1642 HYDC C. 22, San Isidro

Abstract

We report a detailed study of the development and morphology of pollen in four species of the genus Pterocactus (Cactaceae), carried out by using LM and SEM. The anther is tetrasporangiate, its wall consists of epidermis, endothecium, one middle layer and a binucleate secretory tapetum. Microspore tetrads are tetrahedrical and pollen grains are shed at bicellular stage. Pollen grains are pantoporate, with a perforate tectum and supratectate spinules.

Citation Download Citation

Marina M. Gotelli, Agustina Scambato, Beatriz Galati, and Roberto Kiesling "Pollen Development and Morphology in four Species of Pterocactus (Cactaceae)," Annales Botanici Fennici 46(5), 409-415, (1 October 2009). https://doi.org/10.5735/085.046.0505

Received: 10 June 2008; Accepted: 1 August 2008; Published: 1 October 2009

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