Ulva latissima Linnaeus, Species Plantarum 2: 1163. 1753.

"Habitat in Mari Europae." RCN: 8367.

Lectotype (Papenfuss in J. Linn. Soc., Bot. 56: 303. 1960): Herb. Linn. No. 1275.14 (LINN) . - Epitype (Lane in Spencer & al. in Taxon, in press): United Kingdom. Cornwall, Looe, Hannafore Point, 24 Jul 2005, J. Brodie (BM-000893632).

Current name: Saccharina latissima (L.) C.E. Lane & al. ( Laminariaceae).