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

"Habitat in Mari." RCN: 8366.

Type not designated.

Original material: Herb. Linn. No. 1275.11 (LINN); Herb. Linn. No. 1275.12 (LINN); [icon] in Dillenius, Hist. Musc.: 34, t. 6, f. 39. 1741.

Current name: Ceramium virgatum Roth ( Ceramiaceae).

Note: This name is a potential threat to the well-known names of several species of algae and is a candidate for rejection.