Aspectos de la biologi?a floral del ge?nero Sarcocapnos DC. (Fumariaceae).
DOI:
https://doi.org/10.24310/abm.v27i0.7306Abstract
RESUMEN. Aspectos de la biología floral del género Sarcocapnos DC. (Fumariaceae). Se describe la fenología de la floración y de la fructificación de tres especies del género Sarcocapnos, así como algunos aspectos de la biología floral (biometría de flores, carga polínica sobre el estigma, presencia de tubos polínicos sobre el mismo, número medio de granos de polen por flor, relación P/O, biometría de frutos y número medio de semillas viables por fruto) de las siete especies que integran el género. Se concluye que éstas presentan un conjunto de caracteres que favorecen la polinización cruzada, a diferencia de las afirmaciones de otros autores que las consideran predominantemente autógamas.
Palabras clave. Biometría floral, casmófitos, endemismos, fenología, floración, fructificación, Fumariaceae, relación polen/óvulos, Sarcocapnos.
ABSTRACT. Floral biology of genus Sarcocapnos DC. (Fumariaceae). The phenology of flowering and fruiting is described in three species of the genus Sarcocapnos. In addition, some aspects of the floral biology (biometry of flowers, pollen load, the presence of pollen tubes on the stigma, the mean number of pollen grains per flower, the P/0 relationship, the biometry of fruits and the mean number of viable seeds per fruit) have been calculated for the seven species comprising this genus. It is concluded that these present a group of traits giving rise to allopollinization, in contrast to the conclusions of other works characterizing these plants as predominantly autogairious.
Key words. Chasmophytes, endemic species, floral biometry, flowering, fruiting, Fumariaceae, phenology, polen/ovule ratios, Sarcocapnos.
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