Andersen, S. Th. and Bxklsen, F. (Geological Survey of Dxmark.) Scaiiriirrg electroil riiicroscope srirdics of pollcri 01 ccreals arid other grasses. Gmna 12: 79-86, 1912.-Various authors disagree about the identification of ccrea! pollen based on phase 'contrast studies. Pollen of thc common cereals and some wild grasscs of a similar sire range \\ere examined with a scanning electron rnicroscopc. T h e pollen grains of ilordeuiri, Secalc, Triticiitii rrioiio-COCCIIIII, Agropyrorr, Aiiiriiopliila, Elyiiiiis and Gfyceriri species have P scabrate sculpture of varying coarseness. The pollen of other Trificitiii species and Averin have an areolate sculpture. .

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