hydrocaulus


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hydrocaulus

[′hī·drō′kȯl·əs]
(invertebrate zoology)
Branched, upright stem of a hydroid colony.
References in periodicals archive ?
branching pattern and hydrocaulus length) may provide some means of separating lineages in this cosmopolitan invasive species.
Decreasing temperatures cause the tissue of hydroids to regress into a small section of hydrocaulus or hydrorhizae, which regrow when favorable temperatures return (Gili & Hughes 1995).
Hydrocaulus always unbranched, monosiphonic, divided by internodes at regular intervals.
Newly settled individuals that did not develop to hydrocaulus and hydrorhiza elongation retained small numbers of AIs in the aboral tentacle tips (Al, 16.