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Basidium :: Basidium (n.) A special oblong or pyriform cell, with slender branches, which bears the spores in that division of fungi called Basidiomycetes, of which the common mushroom is an example..

Sporidium :: Sporidium (n.) A secondary spore, or a filament produced from a spore, in certain kinds of minute fungi..

Prothallus :: Prothallus (n.) The minute primary growth from the spore of ferns and other Pteridophyta, which bears the true sexual organs; the oophoric generation of ferns, etc..

Oosporic :: Oosporic (a.) Of or pertaining to an oospore.

Zonate :: Zonate (a.) Divided by parallel planes; as, zonate tetraspores, found in certain red algae..

Rust :: Rust (n.) A minute mold or fungus forming reddish or rusty spots on the leaves and stems of cereal and other grasses (Trichobasis Rubigo-vera), now usually believed to be a form or condition of the corn mildew (Puccinia graminis). As rust, it has solitary reddish spores; as corn mildew, the spores are double and blackish..

Endosporous :: Endosporous (a.) Having the spores contained in a case; -- applied to fungi.

Zoospore :: Zoospore (n.) A spore provided with one or more slender cilia, by the vibration of which it swims in the water. Zoospores are produced by many green, and by some olive-brown, algae. In certain species they are divided into the larger macrozoospores and the smaller microzoospores. Called also sporozoid, and swarmspore..

Thecasporous :: Thecasporous (a.) Having the spores in thecae, or cases..

Apogamy :: Apogamy (n.) The formation of a bud in place of a fertilized ovule or oospore.

Ovum :: Ovum (n.) A more or less spherical and transparent mass of granular protoplasm, which by a process of multiplication and growth develops into a mass of cells, constituting a new individual like the parent; an egg, spore, germ, or germ cell. See Illust. of Mycropyle..

Acrosporous :: Acrosporous (a.) Having acrospores.

Macrozoospore :: Macrozoospore (n.) A large motile spore having four vibratile cilia; -- found in certain green algae.

Motile :: Motile (a.) Having powers of self-motion, though unconscious; as, the motile spores of certain seaweeds..

Lycoperdon :: Lycoperdon (n.) A genus of fungi, remarkable for the great quantity of spores, forming a fine dust, which is thrown out like smoke when the plant is compressed or burst; puffball..

Oosporangium :: Oosporangium (n.) An oogonium; also, a case containing oval or rounded spores of some other kind than oospores..

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..

Androspore :: Androspore (n.) A spore of some algae, which has male functions..

Rejuvenescence :: Rejuvenescence (n.) A method of cell formation in which the entire protoplasm of an old cell escapes by rupture of the cell wall, and then develops a new cell wall. It is seen sometimes in the formation of zoospores, etc..

Exospore :: Exospore (n.) The extreme outer wall of a spore; the epispore.

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