Bot. Pl. -ia. [mod.L., f. Gr. θρίξ, τριχ- hair: cf. ANTHERIDIUM.] A simple or branched hair-like body which supports the spores in certain fungi, as Geaster.

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1842.  Brande, Dict. Sci., etc., Trichidium, a netted filamentous organ … in which the spores of some kinds of fungi are included.

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1866.  Treas. Bot., Trichidium, a hair which bears the spores of such fungals as Geastrum.

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