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Orthogamy :: Orthogamy (n.) Direct fertilization in plants, as when the pollen fertilizing the ovules comes from the stamens of the same blossom; -- opposed to heterogamy..

Ovule :: Ovule (n.) The rudiment of a seed. It grows from a placenta, and consists of a soft nucleus within two delicate coatings. The attached base of the ovule is the hilum, the coatings are united with the nucleus at the chalaza, and their minute orifice is the foramen..

Gemmule :: Gemmule (n.) An ovule.

Pendulous :: Pendulous (a.) Inclined or hanging downwards, as a flower on a recurved stalk, or an ovule which hangs from the upper part of the ovary..

Orthotropous :: Orthotropous (a.) Having the axis of an ovule or seed straight from the hilum and chalaza to the orifice or the micropyle; atropous.

Hemitropous :: Hemitropous (a.) Having the raphe terminating about half way between the chalaza and the orifice; amphitropous; -- said of an ovule.

Placenta :: Placenta (n.) The part of a pistil or fruit to which the ovules or seeds are attached.

Fertilization :: Fertilization (n.) The act of fecundating or impregnating animal or vegetable germs; esp., the process by which in flowers the pollen renders the ovule fertile, or an analogous process in flowerless plants; fecundation; impregnation..

Abortive :: Abortive (v.) Imperfectly formed or developed; rudimentary; sterile; as, an abortive organ, stamen, ovule, etc..

Anatropous :: Anatropous (a.) Having the ovule inverted at an early period in its development, so that the chalaza is as the apparent apex; -- opposed to orthotropous..

Ovular :: Ovular (a.) Relating or belonging to an ovule; as, an ovular growth..

Ovulum :: Ovulum (n.) An ovule.

Spore :: Spore (n.) An embryo sac or embryonal vesicle in the ovules of flowering plants.

Seed :: Seed (n.) A ripened ovule, consisting of an embryo with one or more integuments, or coverings; as, an apple seed; a currant seed. By germination it produces a new plant..

Ovulate :: Ovulate (a.) Containing an ovule or ovules.

Ovule :: Ovule (n.) An ovum.

Oospore :: Oospore (n.) A fertilized oosphere in the ovule of a flowering plant.

Impregnable :: Impregnable (a.) Capable of being impregnated, as the egg of an animal, or the ovule of a plant..

Monembryony :: Monembryony (n.) The condition of an ovule having but a single embryo.

Nucleus :: Nucleus (n.) An incipient ovule of soft cellular tissue.

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