- pollen sac
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Bot.one of the cavities in an anther in which pollen is produced.[1870-75]
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Universalium. 2010.
pollen sac
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Pollen sac — Pollen Pol len, n. [L. pollen fine flour, fine dust; cf. Gr. ?] 1. Fine bran or flour. [Obs.] Bailey. [1913 Webster] 2. (Bot.) The fecundating dustlike cells of the anthers of flowers. See {Flower}, and Illust. of {Filament}. [1913 Webster]… … The Collaborative International Dictionary of English
pollen sac — noun : one of the sacs in a seed plant that contain the pollen and that are initially four in number but are commonly reduced to two by disintegration of the intervening walls in the mature anther * * * Bot. one of the cavities in an anther in… … Useful english dictionary
pollen sac — noun Date: 1875 one of the pouches of a seed plant anther in which pollen is formed … New Collegiate Dictionary
Pollen — Pol len, n. [L. pollen fine flour, fine dust; cf. Gr. ?] 1. Fine bran or flour. [Obs.] Bailey. [1913 Webster] 2. (Bot.) The fecundating dustlike cells of the anthers of flowers. See {Flower}, and Illust. of {Filament}. [1913 Webster] {Pollen… … The Collaborative International Dictionary of English
Pollen grain — Pollen Pol len, n. [L. pollen fine flour, fine dust; cf. Gr. ?] 1. Fine bran or flour. [Obs.] Bailey. [1913 Webster] 2. (Bot.) The fecundating dustlike cells of the anthers of flowers. See {Flower}, and Illust. of {Filament}. [1913 Webster]… … The Collaborative International Dictionary of English
Pollen mass — Pollen Pol len, n. [L. pollen fine flour, fine dust; cf. Gr. ?] 1. Fine bran or flour. [Obs.] Bailey. [1913 Webster] 2. (Bot.) The fecundating dustlike cells of the anthers of flowers. See {Flower}, and Illust. of {Filament}. [1913 Webster]… … The Collaborative International Dictionary of English
Pollen tube — Pollen Pol len, n. [L. pollen fine flour, fine dust; cf. Gr. ?] 1. Fine bran or flour. [Obs.] Bailey. [1913 Webster] 2. (Bot.) The fecundating dustlike cells of the anthers of flowers. See {Flower}, and Illust. of {Filament}. [1913 Webster]… … The Collaborative International Dictionary of English
Pollen — Tip of a tulip stamen with many grains of pollen Closeup image of a cac … Wikipedia
pollen mother cell — noun Date: 1884 a cell that is derived from the hypodermis of the pollen sac and that gives rise by meiosis to four cells each of which develops into a pollen grain … New Collegiate Dictionary
pollen mother cell — noun : a cell that is derived from the hypodermis of the pollen sac and that gives rise by meiosis to four cells, each of which develops into a pollen grain … Useful english dictionary
