Under a moderately high magnification of 844x, this scanning electron micrograph (SEM) revealed some of the morphologic ultrastructure found amongst a collection of pollen found within the dehisced, or split open, anther of a yellow "Fireworks" sundrops, Oenothera fruticosa flower. Note the granules embedded in a sandy-like substance. This finely granulated substance represents the contents of the disintegrated tapetum cells, which during the pollens' development, surrounds the maturing pollen grains, and has been termed "pollenkitt".
CDC/ Janice Carr, Betsy Crane
December 2, 2012
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