pollen sac

American  

noun

Botany.

1. one of the cavities in an anther in which pollen is produced.

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pollen sac Scientific  

1. The microsporangium of a seed plant in which pollen is produced. The pollen sacs of angiosperms are located in the anthers, while those of conifers are located in the male cones.

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Etymology

Origin of pollen sac

First recorded in 1870–75

Example Sentences

The wall of the ripe sporangium or pollen sac is composed of a single layer of cells in most places, and these cells are provided with thickened ridges which have to do with opening the pollen sac.

From Project Gutenberg

A true, little-modified petal is drawn together on its upper margin, and produces a pollen sac, while the rest of the petal takes the place of the stamen.

From Project Gutenberg

This drawing together is produced by a small weal, which appears as a more or less complete pollen sac, and in the same proportion the leaf approaches the simple form of a stamen.

From Project Gutenberg