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One of the special zooids, or cells, of Bryozoa, destined to receive and develop ova; an ovicell. See Bryozoa.

The development, or mode of origin, of the ova.

A special cell in certain cryptogamous plants containing oöspheres, as in the rockweeds (Fucus), and the orders Vaucherieæ and Peronosporeæ.

A variety of limestone, consisting of small round grains, resembling the roe of a fish. It sometimes constitutes extensive beds, as in the European Jurassic. See the Chart of Geology.

Of or pertaining to oölite; composed of, or resembling, oölite.

Of or pertaining to oölogy.

One versed in oölogy.

The science of eggs in relation to their coloring, size, shape, and number.

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 oöphore is a minute prothallus; in mosses it…

Ovariotomy.

Having the nature of, or belonging to, an oöphore.

The macrosporangium or case for the larger kind of spores in heterosporous flowerless plants.

Ovaritis.

Any plant of a proposed class or grand division (collectively termed oöphytes or Oöphyta), which have their sexual reproduction accomplished by motile antherozoids acting on oöspheres, either while included in their oögonia or after exclusion.

Of or pertaining to an oöphyte.

A wild, bearded sheep inhabiting the Ladakh mountains. It is reddish brown, with a dark beard from the chin to the chest.

The ovum, after fusion with the spermatozoön in impregnation. Balfour.

An unfertilized, rounded mass of protoplasm, produced in an oögonium.

An oögonium; also, a case containing oval or rounded spores of some other kind than oöspores.

A special kind of spore resulting from the fertilization of an oösphere by antherozoids.