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
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Microchaete<br />
Classification: Cy<strong>an</strong>obacteria (Family<br />
Microchaetaceae)<br />
General habit: ent<strong>an</strong>gled filaments, macroscopically<br />
seen as small, stellate tufts or as mats on rock<br />
surfaces or submerged vegetation in streams,<br />
usually brownish or gray in color<br />
Species in Hawai‘i: M. uberrima, M. tenera<br />
Isl<strong>an</strong>d distribution: Kaua‘i, Hawai‘i<br />
Distinguishing features: filaments not tapering<br />
along their length, enclosed in a sheath, occasional<br />
false br<strong>an</strong>ching present, heterocysts c<strong>an</strong> be at the<br />
ends <strong>of</strong> filaments (Fig. C) or along the length <strong>of</strong> the<br />
filament<br />
Compare with: Dichothrix, Scytonema, Tolypothrix<br />
14<br />
A. A piece <strong>of</strong> <strong>an</strong> epilithic mat formed by<br />
Microchaete. Scale bar = 2mm. B. Compound<br />
microscope view <strong>of</strong> intertwined Microchaete filaments<br />
from a mat formation. Scale bar = 70µm.<br />
C. High magnification view <strong>of</strong> a small filament<br />
illustrating the basal heterocyst <strong>an</strong>d uniformity <strong>of</strong><br />
filament diameter along its length. Scale bar =<br />
15µm.
Change language