Megaspore

megaspore
a large spore produced in a megasporangium
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
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megaspores
which develop in the megasporangium and
which will develop into the female gametophyte generation.
Link to a discussion of the alternation of gametophyte and sporophyte generations ...
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megaspores Four haploid cells produced by meiosis in the ovule of a þower. Usually, three of these cells degenerate, with the remaining cell becoming the female gametophyte phase of the plant's life cycle.
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megaspore
[Gk. megas, great, large + spora, a sowing]
In plants, a haploid (n) spore that develops into a female gametophyte.
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megaspore -- In plants which are heterosporous, the larger kind of spore is called a megaspore; it usually germinates into a female (egg-producing) gametophyte. Contrast with microspore.
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megaspore Haploid cell produced by meiosis in the ovules of angiosperms; a single megasporocyte produces four megaspores, only one of which remains functional.
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megaspore
The larger of two types of spores produced by many ferns and seed plants. The megaspore gives rise to a female gametophyte in ferns and in seed plants, and in flowering plants becomes the embryo sac.
Covered in Lab 8 Seed Plant Reproduction ...
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An example is the parent of gametophytes of the higher vascular plants (angiosperms and gymnosperms)-the microspores (give rise to pollen) and megaspores (give rise to ovules) found in flowers and cones; ...
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