Bryopsidophyceae | Bryopsidales
Guiry, M.D. and G.M. Guiry. 2009. (Ref. 80701)
Size / Weight / Age
Epiphytic; depth range 0 - 41 m (Ref. 102109)
Climate / Range
Thalli erect, bright green in colour when fresh and cream or greenish when dried, moderately calcified. Holdfast bulbous. Thallus with a compressed, rectangular to subcuneate basal segment, from which arise in a single plane 2 or more separate segments, altogether forming a somewhat folded, fan-shaped base. Segments of branches distinctly large and flat to compressed, 1 to 3 mm thick, commonly flabellate and occasionally quadrangular, the uppermargin entire, undulate or irregularly lobed; largest segment 2.2 cm high and 2.9 cm wide. Cortex consisting of 3 layers of utricles, outermost utricles easily separate upon decalcification; utricles polygonal in surface view, 30 to 60 μm broad and 79 to 136 μm long. Thallus (excluding holdfast) to about 12 cm in height; holdfast to 4.5 cm in length (Ref. 80758).
Not utilized commercially, although research have shown that it is a source of growth regulators: auxin, gibberellin, cytokinin; also possesses antibacterial and antifungal properties (Ref. 80758). Occurs on sand flats or in shallow water, usually in close association with seagrasses and other large macroalgae (Ref. 80758).
IUCN Red List Status (Ref. 114614)
CITES status (Ref. 94142)
Threat to humans
Fisheries: of potential interest
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Estimation of some characteristics with mathematical models