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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Lyngbya<br />
Classification: Cy<strong>an</strong>obacteria (Family<br />
Oscillatoriaceae)<br />
General habit: loose filaments that occasionally<br />
aggregate macroscopically in mats or tufts, c<strong>an</strong> be<br />
epiphytic on other vegetation or epilithic on rock<br />
surfaces, color varies from bluish-green to reddish<br />
or purplish<br />
Species in Hawai‘i: L. aestuarii, L. cladophorae, L.<br />
major, L. martensi<strong>an</strong>a, L. putealis, Lyngbya sp.<br />
Isl<strong>an</strong>d distribution: O‘ahu, Hawai‘i<br />
Distinguishing features: filaments unbr<strong>an</strong>ched,<br />
mostly cylindrical <strong>an</strong>d tapering very little if at all,<br />
enclosed in a sheath (Figs B, C), heterocysts absent,<br />
filaments loosely ent<strong>an</strong>gled rather th<strong>an</strong> forming a<br />
distinct mat-like structure (as in Phormidium)<br />
Compare with: Oscillatoria, Phormidium<br />
13<br />
A. Filaments <strong>of</strong> Lyngbya entwined on a br<strong>an</strong>ch.<br />
Scale bar = 1mm. B. Two individual filaments <strong>of</strong><br />
Lyngbya illustrating the surrounding sheath.<br />
Scale bar = 30µm. C. A long sheath surrounding<br />
a Lyngbya filament. Scale bar = 30µm. D. High<br />
magnification view <strong>of</strong> a terminal region <strong>of</strong> a filament.<br />
Scale bar = 20µm.
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