Mature pollen from 76 species in the complete roster of genera in the Onagraceae was examined for starch-containing or starchless contents.Fuchsia and Lopezia pollen grains, after passing through a stage of starch accumulation, lose the starch (presumably converted to lipid) and are classified as "starchless."All other genera have pollen that is starch-containing at maturity.The phylogenetic implications of this are е Pollen grain diameter is larger in the "starchy"" taxa than in the "starchless"" ones.There is a a strong correlation of pollen sinu ae and the length of style to be traversed by the salle ihe in species with "'starchy"' grai Baker, Herbert G. and Baker, Irene.1982."Starchy and Starchless Pollen in the Onagraceae."
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