Conferva glaucescens

Conferva gracilis

Conferva flexuosa

Conferva læte-virens [lætevirens]

Enteromorpha compressa. var.

Polysiphonia stricta

Ceramium rubrum

Griffithsia multifida / var. pilifera

Ectocarpus distortus

Ceramium strictum

Griffithsia Devoniensis

Callithamnion pedicellatum

Rhodomela lycopodoides [= Rhodomela lycopodioides]

Ceramium strictum

Conferva refracta

Polysiphonia nigrescens

Polysiphonia fibrata

Callithamnion tetricum

Ceramium fastigiatum

Myrionema strangulans / parasitic

Polysiphonia urceolata. var. patens

Chondrus crispus. var.

Conferva arcta - the three upper specimens in the young state

Polysiphonia byssoides

Chylocladia articulata