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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Schizothrix<br />
Classification: Cy<strong>an</strong>obacteria (Family<br />
Schizotrichaceae)<br />
General habit: series <strong>of</strong> filaments enclosed in a<br />
sheath <strong>of</strong> mucilage, forming broad mats that are<br />
attached to rock surfaces or lightly embedded in<br />
sediment<br />
Species in Hawai‘i: S. calcicola, S. friesii, S.<br />
lacustris, S. rivularis<br />
Isl<strong>an</strong>d distribution: Ni‘ihau, Kaua‘i, O‘ahu,<br />
Moloka‘i, Maui, Hawai‘i<br />
Distinguishing features: several filaments enclosed<br />
in a sheath <strong>of</strong> mucilage, the sheath c<strong>an</strong> either be<br />
colorless or yellowish, cells cylindrical in shape but<br />
with the apical cell tapering<br />
Compare with: Dichothrix, Microcoleus, Phormidium<br />
20<br />
A. Dissecting microscope view <strong>of</strong> a mat formed by<br />
Schizothrix filaments. Scale bar = 2mm. B. Several<br />
filaments enclosed in a mucilage sheath. Scale<br />
bar = 10µm. C. India Ink preparation illustrating<br />
the sheath surrounding Schizothrix filaments.<br />
Scale bar = 15µm.
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