Pinus m ugo T urra, Pinaceae. Pollen, Wings, Localization of Epicuticular Waxes "Epicuticular waxes" from pine pollen and from pollen wings have been investigated. Various hydrocarbons, aldehydes, wax esters, free fatty acids and primary alcohols in the form of homologous series were identified. A noteworthy observation was the presence of a large num ber of unsaturated fatty acids.A lthough there were quantitative differences between the waxes from whole pollen and pollen wings, the distribution patterns of chain lengths of the individual compounds were very similar.It is dem onstrated unequivocally, through the use of pollen wing m aterial, that the waxes are com ponents of the exine. It is postulated that the pollen waxes provide an additional effective mechanism for protection against the effects of the physical and chemical environm ent.
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