 |
RHODOPHYTA (red algae) |
Polysiphonia
nigrescens (Hudson) Greville,, 1833 |
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| Lenght: ~20 cm Width: 0.1-1 mm |
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Thallus thin filiform, firm
to coarse, bushy, dark purple to black. Pericentral cells 12-20. Litophyte
and epiphyte. In sublittoral, mainly in sheltered localities.Rare,
boreal species. |
