from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A minute vesicle in some seaweeds, containing the reproductive spores.

from the GNU version of the Collaborative International Dictionary of English

  • n. A minute vesicle in a red seaweed, which contains the reproductive spores.

from The Century Dictionary and Cyclopedia

  • n. The sexual fruit of algæ of the order Florideœ, consisting of spores either without a special membranous envelop or contained within a conceptacle or pericarp. Also cryptocarp, sporocarp.


Ancient Greek bladder + fruit. (Wiktionary)


  • a wall, becomes surrounded with a covering of cells called a cystocarp, which springs from cells below the trichogyne, and after the whole structure falls from the parent plant, spores are developed from the oospore, and from them arises a new generation.

    Scientific American Supplement, No. 531, March 6, 1886

  • From below the trichogyne, however, spring several branches, which run to the ends of adjacent branches, with the apical cells of which they conjugate, and the result of this conjugation is the development of a cystocarp similar to that of Coleochæte.

    Scientific American Supplement, No. 531, March 6, 1886


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