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

"Habitat in Europae marinis rupibus." RCN: 8380.

Lectotype (de Reviers in Spencer & al. in Taxon, in press): [icon] " Conferva marina capillacea longa, ramosissima mollis " in Dillenius, Hist. Musc.: 23, t. 4, f. 19. 1741. - Voucher: Herb. Dillenius (OXF) . - Epitype (Loiseaux & de Reviers in Spencer & al. in Taxon, in press): France. Roscoff, Perharidy, mid intertidal, on Fucus vesiculosus L., 30 Sep 2002, A. Peters (CCAP strain no. 1330/2) (PC-0074126).

Current name: Pylaiella littoralis (L.) Kjellm. ( Acinetosporaceae).

Note: See discussion by Setchell & Gardner (in Univ. Calif. Publ. Bot. 8: 403. 1925), Waern (in Acta Phytogeogr. Suecica 30: 110. 1952), Dixon & Russell (in Bot. Notiser 117: 283. 1964), and Drouet (in Acad. Nat. Sci. Philadelphia Monogr. 15: 311. 1968) who treated material in Herb. Dillenius as the type. However, this was not seen by Linnaeus and is not original material for the name.