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red
seaweeds text index
| photo index
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| Seaweeds > Division Rhodophyta > Family Gracilariacea > Gracilaria species |
| Halymenia
red seaweed Halymenia sp.* Family Halymeniaceae updated Jan 12 Where seen? Sometimes mistaken for red plastic bags, these traslucent red seaweeds are often seen, especially on our Southern shores. Each clump can be quite large. Features: Some are translucent, slippery flat sheets and look like a red version of Sea lettuce (Ulva sp). Some are flat with feathered edges. Others have branching forms with a broad flat central 'stem' from which arise finer branches. Spots and bumps on the seaweed may be reproductive structures. The Frilly sheet red seaweed (Halymenia maculata) is more leathery. Although each clump of Halymenia red seaweed can be large, these seaweeds do not 'bloom' and cover large areas like some other kinds of seaweeds. According to AlgaeBase: there are 65 current Halymenia species. Human uses: Among the Halymenia species that are eaten by people are H. discoidea and H. durvillaei. H. venusta is used as animal feed. |
 Labrador, Mar 05  |
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*Seaweed species are difficult to positively identify without microscopic examination.
On this website, they are grouped by external features for convenience of display.
| Halymenia
species recorded for Singapore Pham, M. N., H. T. W. Tan, S. Mitrovic & H. H. T. Yeo, 2011. A Checklist of the Algae of Singapore.
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Links
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University of Western Australia Press. 300pp.|
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