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Halimeda minima (W.R.Taylor) Hillis-Col.

Reference
J.Phycol. 4:32, Figs 5,6 (1968)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus to 18 cm tall (although varying considerably, depending on habitat), grass-green, drying pale olive-green to white, arising from a single holdfast, erect or pendant when growing on undercuts, sparingly dichotomously to trichotomously branched, with sequences of up to 10 unbranched segments. Segments mostly in one plane; basal segments terete to flattened, occasionally trilobed; others discoid, reniform or trilobed, mostly ribbed, often of a uniform size and shape throughout the thallus, 4–6 mm long, 5–9 mm wide. Utricles in 3 or 4 layers; secondary and inner utricles cylindrical and essentially undifferentiated, only slightly constricted if at all; peripheral utricles polygonal in surface view, (20–) 25–35 µm diam., cup- or goblet-shaped, not disassociating after decalcification. Medullary siphons 35–90 µm diam., fusing briefly in groups of 2, 3 or more at nodes; walls thickening and faintly brownish, with large pores developing at fusion sites.

Distribution. Widespread in the Indo-West Pacific.

Habitat. Epilithic in the intertidal and subtidal.

[After Huisman & Verbruggen, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 135 (2015)]

John Huisman and Cheryl Parker, 3 August 2021

Distribution

IMCRA Regions
Kimberley.
Local Government Areas (LGAs)
Broome, Derby-West Kimberley, Wyndham-East Kimberley.