Conferva aeruginosa Linnaeus, Species Plantarum 2: 1165. 1753.

"Habitat in Angliae fucis." RCN: 8381.

Lectotype (Irvine in Spencer & al. in Taxon, in press): [icon] " Conferva marina capillacea brevis, viridissima mollis " in Dillenius, Hist. Musc.: 23, t. 4, f. 20. 1741. - Voucher: Herb. Dillenius (OXF) .

Current name: Spongomorpha aeruginosa (L.) C. Hoek ( Acrosiphoniaceae).

Note: Van den Hoek (Revis. Eur. Sp. Cladophora: 19, 225. 1963), followed by others, treated material in the Dillenius herbarium as the type but as this was not studied by Linnaeus, it cannot be original material.