Imagem de Oenothera fruticosa L.

Descrição:

Under a high magnification of 1648x, 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. These pollen grains were of the "tricolpate" type of pollen, which means that the outer surface is traversed from pole to pole, by three symmetrically placed furrows. The textured surface also identified this grain as of the "reticulate" type. Note that the grains' shape is elliptical, indicating that they had undergone a drying process, and were ready to be disseminated into the plants environment.
Created: 2006