Plocamium cartilagineum


Description
:
Narrow, compressed, cartilaginous, bright scarlet fronds, to 300 mm long, tufted, much divided. A ramificação primária é dística alterna. A ramificação secundária (râmulos) é em pente ("comblike"). Branching irregularly alternate, branchlets alternately secund in twos to fives, with acute apices, lowest of each set a simple spur, others increasingly strongly pectinate.

In: Seaweed Site - ©Michael D. Guiry - http://seaweed.ucg.ie/descriptions/Plocar.html)

Habitat:
On rocks, lower intertidal and subtidal particularly on ± horizontal platforms, often associate with a light covering of sand, abundant, widely distributed, frequent and persistent in drift.

Similar species:
Sphaerococcus coronopifolius is darker in colour, generally larger and is rare in the intertidal; branching in Sphaerococcus is more irregular and it does not have alternately second branchlets.

(In: Seaweed Site - ©Michael D. Guiry - http://seaweed.ucg.ie/descriptions/Plocar.html)