Abstract

FONSECA, Rosa María; CASTRO-LAPORTTE, Mercedes Eunice  and  SANDOVAL-ZAPOTITLA, Estela. Floral morphoanatomy of Kallstroemia maxima (Zygophyllaceae). Rev. Mex. Biodiv. [online]. 2019, vol.90, e902075.  Epub Jan 31, 2019. ISSN 2007-8706.  https://doi.org/10.22201/ib.20078706e.2019.90.2075.

The objective is to contribute to the knowledge of the floral anatomy of Kallstroemia maxima and compare it with other related genera within the family Zygophyllaceae. Flower buds obtained from 3 plants of K. maxima were collected a day before to the anthesis. Permanent preparations were processed and observations of photomicrographs from herborizated buds were done. Anatomical descriptions of characters not previously reported are given such as: the nectaries opposed to the sepals, presence of a vascular bundle shared by a petal and the stamen opposite to it, helicoidal thickening of the epidermal cells on the petal margins, papillary cells near the base of the abaxial surface of petals, number of vascular bundles that irrigate each carpel and the existence of an internal cavity at the base of the style. The results allowed us to distinguish better Kallstroemia maxima from related genera in the Zygophyllaceae.

Keywords : Flower; Androecium; Gynoecium; Nectaries.

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