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Abstract

In 1908 Winkler gave the definition of apomixis as „den Ersatz der geschlechtlichen Fortpflanzung durch einen anderen, ungeschlechtlichen, nicht mit Kern- und Zellverschmelzung verbundenen Vermehrungsprozeß“. Apomixis is a derived stage occuring in species with sexual relatives in the same or related genera. There are two main groups of apomictic propagation in the Angiosperms, agamospermy (Täckholm 1922), i. e. the formation of seeds without a sexual process, and vegetative propagation by means of propagules such as bulbils or by runners, stolons and so on.

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