Laurencia brongniartii J. Agardh, 1841: 20–21 (type locality: Martinique, West Indies).—S. Dixit, 1966: 20.— Saito & Womersley, 1974: 839–841, figs. 4C,D, 20, 21.— Farghaly, 1980: 158.— Nair et al., 1986: 738.— Huisman et al., 1990: 97.— Huisman & Walker, 1990: 436.— Kendrick, Huisman, & Walker, 1990: 52.— Millar, 1990: 464.— Nair et al., 1993: 186.
Taxonomic synonyms:
Laurencia concinna Montagne, 1842a: 6 (type locality: Toud Island [Warrior Islet], Torres Strait, Australia).—J. Agardh, 1852 [1851–1863]: 764–765, footnote.— J. Agardh, 1876: 661.— Sonder, 1880: 30.— G. Murray, 1887: 30.— Hariot, 1902: 471.— De Toni, 1903: 806.— Lucas, 1909: 39.— Weber-van Bosse, 1923: 346.— Cribb, 1958a: 163.— Durairatnam, 1963: 26–27.
* Laurencia grevilleana Harvey, 1855b: 545 (type locality: Rottnest Island, Western Australia).—Harvey, 1858b: pl. XV.— Harvey, 1863: xxvi.— J. Agardh, 1876: 661.— Sonder, 1880: 30.— De Toni, 1903: 806–807.— Lucas, 1909: 39.— Yamada, 1931b: 245–246.
Misapplied name (fide Saito & Womersley, l.c.):
Laurencia distichophylla.—Harvey, 1855b: 545 ("Near L. distichophylla, J. Ag.?'').— Harvey, 1863: xxvi.
INDIAN OCEAN DISTRIBUTION: Australia, Indonesia (Flores), Madagascar, Sri Lanka.
Note: The synonymy was proposed by Saito & Womersley (1974: 839–841). Laurencia concinna was first considered conspecific with L. brongniartii by Yamada (1931b: 240–241). Laurencia grevilleana was placed in the synonymy of L. concinna by Cribb (1958a: 162–163).