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Spore :: Spore (n.) One of the minute grains in flowerless plants, which are analogous to seeds, as serving to reproduce the species..

Spore :: Spore (n.) A minute grain or germ; a small, round or ovoid body, formed in certain organisms, and by germination giving rise to a new organism; as, the reproductive spores of bacteria, etc..

Microspore :: Microspore (n.) One of the exceedingly minute spores found in certain flowerless plants, as Selaginella and Isoetes, which bear two kinds of spores, one very much smaller than the other. Cf. Macrospore..

Phaeospore :: Phaeospore (n.) A brownish zoospore, characteristic of an order (Phaeosporeae) of dark green or olive-colored algae..

Isosporic :: Isosporic (a.) Producing but one kind of spore, as the ferns and Equiseta. Cf. Heterosporic..

Puffball :: Puffball (n.) A kind of ball-shaped fungus (Lycoperdon giganteum, and other species of the same genus) full of dustlike spores when ripe; -- called also bullfist, bullfice, puckfist, puff, and puffin..

Oophore :: Oophore (n.) An alternately produced form of certain cryptogamous plants, as ferns, mosses, and the like, which bears antheridia and archegonia, and so has sexual fructification, as contrasted with the sporophore, which is nonsexual, but produces spores in countless number. In ferns the oophore is a minute prothallus; in mosses it is the leafy plant..

Encystment :: Encystment (n.) A process which, among some of the lower forms of life, precedes reproduction by budding, fission, spore formation, etc..

Angiocarpous :: Angiocarpous (a.) Having the seeds or spores covered, as in certain lichens..

Seirospore :: Seirospore (n.) One of several spores arranged in a chain as in certain algae of the genus Callithamnion.

Perispore :: Perispore (n.) The outer covering of a spore.

Zoosporangium :: Zoosporangium (n.) A spore, or conceptacle containing zoospores..

Underspore :: Underspore (v. t.) To raise with a spar, or piece of wood, used as a lever..

Fructification :: Fructification (n.) The process of producing fruit, or seeds, or spores..

Elater :: Elater (n.) An elastic spiral filament for dispersing the spores, as in some liverworts..

Zyophyte :: Zyophyte (n.) Any plant of a proposed class or grand division (Zygophytes, Zygophyta, or Zygosporeae), in which reproduction consists in the union of two similar cells. Cf. Oophyte..

Bacterium :: Bacterium (n.) A microscopic vegetable organism, belonging to the class Algae, usually in the form of a jointed rodlike filament, and found in putrefying organic infusions. Bacteria are destitute of chlorophyll, and are the smallest of microscopic organisms. They are very widely diffused in nature, and multiply with marvelous rapidity, both by fission and by spores. Certain species are active agents in fermentation, while others appear to be the cause of certain infectious diseases. See Bacillus

Tetraspore :: Tetraspore (n.) A nonsexual spore, one of a group of four regularly occurring in red seaweeds..

Sporophoric :: Sporophore (n.) That alternately produced form of certain cryptogamous plants, as ferns, mosses, and the like, which is nonsexual, but produces spores in countless numbers. In ferns it is the leafy plant, in mosses the capsule. Cf. Oophore..

Paraphysis :: Paraphysis (n.) A minute jointed filament growing among the archegonia and antheridia of mosses, or with the spore cases, etc., of other flowerless plants..

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