Dumontia contorta

Dumontia contorta (S.G. Gmelin) Ruprecht ^[1]

The thallus grows from a discoid holdfast to a length of about 23 cms. The fronds branched irregularly and sparingly.^[2] Branches hollow, soft and twisted, dark reddish brown in colour which bleach towards the tips, they clearly taper at their junction.^[1]

Distribution

Common around the British Isles. Europe from Russia to Portugal and Canada to USA. In the NW Pacific and Alaska.^[1]

References

^ ^a ^b ^c Irvine, L.M. 1983. Seaweeds of the British Isles Volume 1 Rhodophyta. Part 2A. British Museum (Natural History) ISBN 0 565 00871 4
^ Jones, W.E. 1964. A key to the genera of the British seaweeds. Field Studies 1 no.4:1 - 32

[Irvine_83-1] Irvine, L.M. 1983. Seaweeds of the British Isles Volume 1 Rhodophyta. Part 2A. British Museum (Natural History) ISBN 0 565 00871 4

[2] Jones, W.E. 1964. A key to the genera of the British seaweeds. Field Studies 1 no.4:1 - 32

[1]

[2]