Apogamy



the asexual development of a sporophyte from a cell or cells of the gametophyte other than the egg.
Historical Examples

apogamy, of course, answers to indiscriminate isolation, or separate breeding.
Darwin, and After Darwin (Vol 3 of 3) George John Romanes

Other names for indiscriminate isolation are separate breeding and apogamy.
The Making of Species Douglas Dewar

Isolation, then, is a genus, of which apogamy and Homogamy are species.
Darwin, and After Darwin (Vol 3 of 3) George John Romanes

noun
a type of reproduction, occurring in some ferns, in which the sporophyte develops from the gametophyte without fusion of gametes
the development of a diploid cell in the embryo sac of flowering plants into an embryo without being fertilized

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    Astronomy. the point in the orbit of a heavenly body, especially the moon, or of a man-made satellite at which it is farthest from the earth. Compare . the highest or most distant point; climax. Contemporary Examples It reaches its apogee in Bodrum, since nowhere in Turkey is the produce and seafood fresher or more […]

  • Apogeic

    Astronomy. the point in the orbit of a heavenly body, especially the moon, or of a man-made satellite at which it is farthest from the earth. Compare . the highest or most distant point; climax. noun the point in its orbit around the earth when the moon or an artificial satellite is at its greatest […]



  • Apogeotropism

    growth or orientation away from the earth; negative . noun negative geotropism, as shown by plant stems

  • Apograph

    (defs 1, 2).



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