Champia viridis C. Agardh, 1828: 115 (type locality: not specified [Western Australia fide Reedman & Womersley, 1976: 77]).—Reedman & Womersley, 1976: 77–81, figs. 1, 2A–D, 10.— Huisman & Walker, 1990: 415.
Taxonomic synonyms:
Champia tasmanica Harvey, 1844a: 407, pl. XIX (syntype localities: Port Arthur and Circular Head, Tasmania).—Sonder, 1848 [1846–1848]: 177.— Harvey, 1849 [1847–1849]: 78–79.— Harvey, 1863: xxvii.— J. Agardh, 1876: 306.— De Toni, 1900: 563.— Lucas, 1909: 34.— V. May, 1965: 362.
Champia tasmanica Harvey var. gracilis Harvey, 1863: xxvii (lectotype locality: Port Phillip, Victoria, Australia fide Reedman & Womersley, 1976: 79).
Misapplied name (fide Reedman & Womersley, 1976: 77–81):
Champia compressa.—Harvey, 1855b: 545.— Harvey, 1863: xxvii.— Sonder, 1880: 17.— Lucas, 1909: 34.
INDIAN OCEAN DISTRIBUTION: Australia.
Note: The synonymy was proposed by Reedman & Womersley (l.c.).