| Name | Author | Source | Citation | Year |
|---|
| Anacystis marginata | Meneghini | Consp. Alg. Eugan.: | 6 | 1837 |
| Antithamnion floccosum var. pacificum | (Harvey) Collins, Holden, & Setchell | Phycoth. Bor.-Amer. | no. 147 | 1895 |
| Batrachospermum moniliforme var. chlorosum | Sirodot | Batrachospermes: | 211, pl. I: fig. 3, pl. 2: fig. 1 | 1884 |
| Calothrix confervicola var. mediterranea | Bornet & Flahault | Ann. Sci. Nat. Bot. ser. 7, | 3: 351 | 1886 |
| Calothrix confervicola var. purpurea | Bornet & Flahault | Ann. Sci. Nat. Bot. ser. 7, | 3: 350 | 1886 |
| Calothrix crustacea f. prolifera | (Flahault) N.L. Gardner & F.S. Collins in Collins, Holden, & Setchell | Phycoth. Bor.-Amer.: | no. 1168 | 1904 |
| Chantransia violacea var. expansa | (H.C. Wood) Wolle | Fresh-water Alg. U.S.: | 59 | 1887 |
| Chara fragilis subsp. delicatula | A. Braun ex Nordstedt | Abh. K. Akad. Wiss. Berlin | 1882: 184 | 1882 |
| Chara hydropitys var. majuscula | Nordstedt | Abh. K. Akad. Wiss. Berlin | 1882: 134 | 1882 |
| Chroothece monococca f. rupestris | (Hansgirg) Hansgirg | Prodr. Algenfl. Böhmen | 2: 135 | 1892 |
| Cladophora fracta f. flavescens | (Roth) Collins | Rhodora | 4: 124 | 1903 |
| Dichothrix hosfordii | (Wolle) Bornet in Collins, Holden, & Setchell | Phycoth. Bor.-Amer. | no. 215 | 1896 |
| Eremosphaera viridis f. major | Moore ex Holden in Collins, Holden, & Setchell | Phycoth. Bor.-Amer.: | no. 1315 | 1906 |
| Euastrum angustatum | (Wittrock) Roy | Scot. Nat. | 4: 70 | 1877 |
| Euastrum insulare | (Wittrock) Roy | Scot. Nat. | 4: 70 | 1877 |
| Gigartina papillata f. dissecta | Setchell in Collins, Holden, & Setchell | Phyc. Bor.-Amer.: | 427 | 1898 |
| Gloeocystis chrysophthalma | (Montagne) Farlow in Farlow, Anderson, & Eaton | Algae Exsicc. Am. Bor.: | 230 | 1880 |
| Gloeothece rupestris | (Lyngbye) Bornet in Wittrock & Nordstedt | Alg. Aq. Dulc. Exsicc.: | no. 399 | 1880 |
| Goniotrichum humphreyi | F.S. Collins in Collins, Holden, & Setchell | Phyc. Bor.-Amer.: | 421, incl. 8 figs. | 1898 |
| Gymnogongrus norvegicus | (Gunnerus) J. Agardh | Sp. alg. | 2: 320 | 1851 |
| Microcystis lutescens | Schiller | SitzBer. Österr. Akad. Wiss., Math.-Naturw. Kl., Abt. I, | 163: 112, fig. 1 | 1954 |
| Microcystis marginata | (Meneghini) Kützing | Tab. phyc. | 1: 6 | 1846 |
| Nitella oligospira var. wrightii | A. Braun in Nordstedt | Abh. K. Akad. Wiss. Berlin | 1882: 70, pl. II: figs. 53-55 | 1882 |
| Nodularia major | (Bornet & Flahault) Kirchner in Engler & Prantl, | Nat. Pflanzenfam. | 1{1a}: 74 | 1900 |
| Nodularia spumigena var. litorea | Bornet & Flahault | Ann. Sci. Nat. Bot. ser. 7, | 5: 246 | 1886 (fixed by Art. 13(e), ICBN) |
| Nodularia spumigena var. major | Bornet & Flahault | Ann. Sci. Nat. Bot. ser. 7, | 5: 247 | 1886 (fixed by Art. 13(e), ICBN) |
| Nostoc cuticulare | Bornet & Flahault | Ann. Sci. Nat. Bot. ser. 7, | 5: 187 | 1886 (fixed by Art. 13(e), ICBN) |
| Nostoc cuticulare var. ligericum | Bornet & Flahault | Ann. Sci. Nat. Bot. ser. 7, | 5: 188 | 1886 (fixed by Art. 13(e), ICBN) |
| Odonthalia dentata f. angusta | Harvey ex Macoun in Collins, Holden, & Setchell | Phycoth. Bor.-Amer.: | no. 1297 | 1905 |
| Palmella chrysophthalma | Montagne | Ann. Sci. Nat., Bot., ser. 3, | 12: 286, no fig. | 1849 |
| Penicillus lamourouxii var. gracilis | A. Gepp & E.S. Gepp | J. Bot. (London) | 43: 2, pl. 468: fig. 2 | 1905 |
| Tetraspora bullosa var. cylindracea | De Toni | Syll. alg.: | 1: 649 | 1889 |