Lyngbya majuscula

Schizonema implicatum

Enteromorpha clathrata

Schizonema parasiticum

Rhodomenia bifida [= Rhodymenia bifida]

Conferva alpina

Lyngbya vermicularis

Conferva fracta

Lyngbya Carmichaelii

Conferva ericetorum

Draparnaldia nana

Conferva tortuosa

Conferva rivularis

Lyngbya speciosa

Conferva Carparyi

Conferva glomerata

Sporochnus rhizodes / β paradoxa [= Sporochnus rhizodes / β paradoxus]

Callithamnion secundatum / (on porphyra)

Vaucheria racemosa

Codium adhaerens

Calothrix Cresswelliae [= Calothrix Creswellii]

Polysiphonia obscura

Conferva purpurascens

Conferva arenosa / this conferva, a few years ago / covered whole areas in Oxfordshire / and Berkshire

Ceramium fastigiatum