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Description: |
Cartilaginous, purplish or blackish red, turf-forming, 2-10 mm high, arising from an extensive creeping base and incorporating shell debris and small molluscs. Erect fronds flattened and leaf-like and 0.5-2 mm broad.
Key characteristics:
Turf formation in the upper intertidal, blackish-red colour when slightly dry, and extensive rhizoids. Original publication: Kützing, F.T. (1849). Species algarum. pp. [i]-vi, [1]-922. Lipsiae [Leipzig]: F.A. Brockhaus.
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| References |
Neto, A.I. (1994). Checklist of the benthic marine macroalgae of the Azores. Arquipélago. Ciências Biológicas e Marinhas 12A: 15-34. |
| Habitat: |
Marine species, on rock in upper intertidal forming extensive mat-like growths below Pelvetia canaliculata, particularly on vertical or near-vertical surfaces. |
| Type information: |
Type information
Type locality: Cadiz, Spain (Athanasiadis 1996: 85). Type: L 941.46.368 |
