Polysiphonia furcellata (C.Agardh) Harvey is small marine red alga in the Division Rhodophyta.

The erect branches are ecorticate composed of a central axis of cells surrounded by 7 or 8 paraxial cells, all of the same length in a ring around the axial cells.

The rhizoids are numerous growing from the pericentral cells.

Reproduction is by specialized propagules [1] England, Wales, Ireland, Isle of Man and Scotland.

[1][2]Canary Islands and in the Mediterranean.