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Having no flowers. Flowerless plants, plants which have no true flowers, and produce no seeds; cryptigamous plants.

State of being without flowers.

A plant which has no cotyledons, as the dodder and all flowerless plants.

Not having visible organs of reproduction, as flowerless plants; agamous.

Destitute of flowers; flowerless.

A flowerless plant which forms a true fruit as the result of fertilization, as the red seaweeds, the Ascomycetes, etc.

; of or pertaining to a cell or cells. Cellular plants, Cellular cryptogams (Bot.), those flowerless plants which have no ducts or fiber in their tissue, as mosses, fungi, lichens, and algæ. -- Cellular theory, or Cell theory (Biol.), a theory, according to which the essential element of every tissue, either vegetable…

A genus of flowerless plants, having articulated stems and whorled branches. They flourish in wet places.

One of the cases containing the spores, etc., of flowerless plants, especially of algae.

The series or division of flowerless plants, or those never having true stamens and pistils, but propagated by spores of various kinds.

cess by which in flowers the pollen renders the ovule fertile, or an analogous process in flowerless plants; fecundation; impregnation. Close fertilization (Bot.), the fertilization of pistils by pollen derived from the stamens of the same blossom. -- Cross fertilization, fertilization by pollen from some other blosso…

ve stamens and pistils, and produce true seeds; phenogamous plants; -- distinguished from flowerless plants. -- Flowering rush, a European rushlike plant (Butomus umbellatus), with an umbel of rosy blossoms.

The spore cases or conceptacles of flowerless plants, as of ferns, mosses, algae, etc., with the spores contained in them.

ction of the horizontal and vertical planes of projection. -- Ground liverwort (Bot.), a flowerless plant with a broad flat forking thallus and the fruit raised on peduncled and radiated receptacles (Marchantia polymorpha). -- Ground mail, in Scotland, the fee paid for interment in a churchyard. -- Ground mass (Geol…

One of a class of cellular, flowerless plants, (technically called Lichenes), having no distinction of leaf and stem, usually of scaly, expanded, frond-like forms, but sometimes erect or pendulous and variously branched. They derive their nourishment from the air, and generate by means of spores. The species are very w…

A flowerless plant (Marchantia polymorpha), having an irregularly lobed, spreading, and forking frond.

One of the specially large spores of certain flowerless plants, as Selaginella, etc.

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.

A term formerly applied to any mosslike flowerless plant, with a distinct stem, and often with leaves, but without any vascular system.

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