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les), regarded at one time as a distinct genus. It is a summer stage preceding the teleutospore, or winter stage. See Uredinales, in the Supplement.

A hollow body shaped like an urn, in which the spores of mosses are contained; a spore case; a theca.

Plants without true flowers, and reproduced by minute spores of various kinds, or by simple cell division. { 1. Acrogens. -- Plants usually with distinct stems and leaves, existing in two alternate conditions, one of which is nonsexual and sporophoric, the other sexual and oöphoric. Divided into Vascular Acrogens, or…

t (bottom yeast), of beer or other in fermentation, which contains the yeast plant or its spores, and under certain conditions produces fermentation in saccharine or farinaceous substances; a preparation used for raising dough for bread or cakes, and making it light and puffy; barm; ferment.

Divided by parallel planes; as, zonate tetraspores, found in certain red algæ.

A spore, or conceptacle containing zoöspores.

Of or pertaining to zoöspores; of the nature of zoöspores.

Any plant of a proposed class or grand division (Zygophytes, Zygophyta, or Zygosporeæ), in which reproduction consists in the union of two similar cells. Cf. Oöphyte.

A spore formed by the union of the contents of two similar cells, either of the same or of distinct individual plants. Zygosperms are found in certain orders of algæ and fungi.