| Name | Notes |
|---|---|
| no common name | Chaetomorpha linum (cladophoraceae) |
| Key criteria: | Chaetomorpha linum is clearly very widespread in Britain and very common. Some of the records may actually be C. aerea or C. crassa but that does not detract from the obviously frequent occurrence of C. linum as a predominantly unattached form giving rise to very obvious physically tough woolly masses on rocks and mud. mud rock |
| rooting green thread weed | Rhizoclonium riparium (chaetophoraceae) |
| Key criteria: | Forming fleecy mats of much-branched fine filaments in the upper intertidal zone. Relatively easy to identify except for discrimination from its congener R. tortuosum; abundant and widespread in the area as indicated especially in low- salinity habitats. upper intertidal intertidal brackish |
A Check-list and Atlas of the Seaweeds of Britain and Ireland. F. G. Hardy and M. D. Guiry. The British Phycological Society, 2003. ISBN 0 9527115 16 Seaweeds of Britain and Ireland. Bunker, Brodie, Maggs and Bunker. Seasearch 2012.