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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Chaetophora<br />
Classification: Chlorophyta (Family<br />
Chaetophoraceae)<br />
General habit: a series <strong>of</strong> br<strong>an</strong>ched filaments that<br />
radiate from a common central point, filaments<br />
encased in a s<strong>of</strong>t mucilage, appearing as small<br />
yellow-green globules in a stream, usually epilithic<br />
or epiphytic<br />
Species in Hawai‘i: C. eleg<strong>an</strong>s<br />
Isl<strong>an</strong>d distribution: Kaua‘i, O‘ahu<br />
Distinguishing features: composed <strong>of</strong> a series <strong>of</strong><br />
highly br<strong>an</strong>ched filaments, colony surrounded by<br />
s<strong>of</strong>t mucilage that lends a distinctive shape to the<br />
org<strong>an</strong>ism, filaments either tapering to a blunt point<br />
or to a long hair, chloroplast b<strong>an</strong>d-shaped <strong>an</strong>d<br />
encircling the wall <strong>of</strong> the cells (especially visible in<br />
main axis cells)<br />
Compare with: Cloniophora, Stigeoclonium<br />
25<br />
A. Colony <strong>of</strong> epilithic Chaetophora as viewed under<br />
a dissecting microscope. Scale bar = 500µm.<br />
B. Arr<strong>an</strong>gement <strong>of</strong> filaments within a Chaetophora<br />
colony. Scale bar = 50µm. C. Tips <strong>of</strong> br<strong>an</strong>ched<br />
filaments showing b<strong>an</strong>d-like chloroplasts in cells.<br />
Scale bar = 25µm.
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