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2 Acta Biologica Cracoviensia. Series Botanica

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Embryology, taxonomy and evolution in parasitic flowering plants

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Pare J. , Raynal-Roques A.

tom 41

The embryogenic types of the families of parasitic flowering plants are used to analyze the classification of these plants. Parasitic flowering plants are located mainly in specialized groups in the upper part of the taxonomic classification. Holoparasitic plants are not numerous and belong to these most specialized groups. This paper synthesizes two protocols to provide information permitting evaluation, discussion and significant reflections concerning evolution in parasitic flowering plants. It is an earnest appeal to embryologists to integrate the evolution of parasitic flowering plants into developmental embryology, and to taxonomists to recognize that embryology is highly interdisciplinary.

The genus Striga [Scrophulariaceae]: taxonomy, geographical distribution. Embryological results in Striga hermonthica [Del].Benth. scourge of food crops in Tropical Africa with special reference to the action of herbicide on seed development

100%

Pare J. , Raynal-Roques A.

tom 34-35

The authors present results of taxonomy, ecology, biological and embryological studies (embryo and endosperm development) in Striga (Scrophulariaceae). The significance of embryo and seed structures is discussed and the results allow to evaluate embryology as a dynamic system of contributing to the resolution of an important agronomical problem in Tropical Africa.