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Like a thread; consisting of threads or filaments. Gray.

Byssuslike; consisting of fine fibers or threads, as some very delicate filamentous algæ.

A filamentous fresh-water alga (Conferva rivularis of Linnaeus, Rhizoclonium rivulare of Kutzing).

A filamentous substance; especially, the filaments of flax or hemp.

oral of the genus Fungia. See Fungia. -- Mushroom spawn (Bot.), the mycelium, or primary filamentous growth, of the mushroom; also, cakes of earth and manure containing this growth, which are used for propagation of the mushroom.

The white threads or filamentous growth from which a mushroom or fungus is developed; the so-called mushroom spawn. -- My*ce"li*al, a.

A genus of dark green, or purplish black, filamentous, fresh- water algæ, the threads of which have an automatic swaying or crawling motion. Called also Oscillatoria.

A small, filamentous ramification of a metallic vein. Ure.

Consisting of strings, or small threads; fibrous; filamentous; as, a stringy root.

by means of asexual spores; in the higher forms the plant body is a thallus, which may be filamentous or may consist of plates of cells; it is commonly undifferentiated into stem, leaves, and roots, and shows no distinct tissue systems; the fronds of many algæ, however, are modified to serve many of the functions of th…