Colonies also grow asexually by producing additional hydranths to the upright branches (hydrocauli) or by extending the attached stolons (
hydrorhiza) that then produce more hydrocauli and hydranths (Kinne, 1958; Fulton 1962; Jormalainen et al., 1994).
Colonies stolonal or erect, up to 19 mm (n = 10) in height, arising directly from creeping
hydrorhiza 80-240 [micro]m (n = 10) in diameter.
Colony height did not exceed three millimeters and the
hydrorhiza was well developed.
Description: Soft brown or yellowish stolonal colony, up to 6.8 mm high, arising from a creeping
hydrorhiza. Long pedicels, 3.4-4.6 gin in length, 50-68 [micron]m in diameter; pedicel base with 2, 3 or 4 annulations; perisarc thick.