The dimorphism of flowers of Jasminum fruticans L. (Oleaceae)

A comparative analysis of long-styled and short-styled flowers of the distylous species of the Crimean flora Jasminum fruticans L. {Oleaceae) is given. The differences of the corolla length, anthers and stigma heights, stigma-anther separation and pollen grains were found for two plants morphological forms. The stamens, anthers and pollen grains are larger in short-styled flowers. The cytomorphological analysis of pollen grains of J. fruticans flower two morph did not reveal the significant differences between the proportions of morphologically normal pollen grains (about 80%). The state of male gametophyte J. fruticans shows absence of lethal anomalies of its development. A cytomorphological status of pollen does not depend on the morphs of the flower. The functionality of male generative sphere of long-styled and short-styled flowers is equal.