Stream macroalgae of Hawai`i: an identification guide - Hawaii.gov
Stream macroalgae of Hawai`i: an identification guide - Hawaii.gov
Stream macroalgae of Hawai`i: an identification guide - Hawaii.gov
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Mougeotia<br />
Classification: Chlorophyta (Family<br />
Zygnemataceae)<br />
General habit: unbr<strong>an</strong>ched filaments, a single cell<br />
in thickness, forming growths around the edges <strong>of</strong><br />
ponds <strong>an</strong>d the slow-flowing areas <strong>of</strong> streams,<br />
yellow-green in color<br />
Species in Hawai‘i: M. capucina, Mougeotia sp.<br />
Isl<strong>an</strong>d distribution: Kaua‘i, O‘ahu, Maui, Hawai‘i<br />
Distinguishing features: filaments unbr<strong>an</strong>ched,<br />
uniform diameter along the length <strong>of</strong> the filament,<br />
chloroplast a flat plate that is occasionally slightly<br />
twisted in view (Fig. D), “lens-shaped” cross walls<br />
evident (Figs D-E).<br />
Compare with: Oedogonium, Rhizoclonium,<br />
Spirogyra, Tribonema, Zygnema<br />
A. A large growth <strong>of</strong> Mougeotia covering rock surfaces<br />
on the bottom <strong>of</strong> a stream. Scale bar = 1m. B.<br />
Mougeotia filaments viewed under a dissecting<br />
microscope. Scale bar = 500µm. C, D, E. Filaments<br />
30<br />
<strong>of</strong> Mougeotia showing plate-like chloroplasts with<br />
pyrenoids suspended in the middle <strong>of</strong> the cell.<br />
Scale bar = 30µm (C), 20µm (D), 25µm (E).
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