hydrorhiza


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Related to hydrorhiza: Hydrocaulus, perisarc

hydrorhiza

the root-like base of a colonial COELENTERATE which fixes it to the substrate.
References in periodicals archive ?
Gonothecae, orange, urn-shaped, about 965-997 [micron]m long, and 401-434 tutu in diameter; usually symmetric; wide-mouthed, orifice diameter about 305-342 [micron]m, constricted just below aperture to about 320 [micron]m wide, arising from hydrorhiza on short inconspicuous pedicels; walls smooth, constricted below aperture.
Newly settled individuals that did not develop to hydrocaulus and hydrorhiza elongation retained small numbers of AIs in the aboral tentacle tips (Al, 16.