Polysiphonia ferulacea Suhr ex J. Agardh, 1863 [1851–1863]: 980–981 (excluding Australian records) (syntype localities: Atlantic Mexico; North America; Guadeloupe, West Indies; Hawaiian Islands; Marquesas Islands; Australia).—G. Murray, 1887: 31.— Piccone, 1889a: 49.— De Toni, 1903: 892–893 (excluding Australian records).— Weber-van Bosse, 1923: 357.— Børgesen, 1931: 16–17, figs. 10a,b.— Børgesen, 1934b: 47.— Børgesen, 1936: 94.— P. Anand, 1943b: 39.— Børgesen, 1945: 34–35, fig. 16.— Kappanna & Sitakara Rao, 1962: 559.— Salim, 1965: 195, 196.— S. Dixit, 1966: 21.— Sigee, 1966: 74.— Tsuda & Newhouse, 1966: 100.— Isaac, 1967: 81.— Sreenivasa Rao, 1967: 171.— W. Isaac & F. Isaac, 1968: 25.— S. Dixit, 1970: 124.— V. Krishnamurthy & H. Joshi, 1970: 26.— Nizamuddin & Gessner, 1970: 13.— Umamaheswara Rao & Sreeramulu, 1970a: 42, fig. 65.— Rhyne, 1971: 62.— Jaasund, 1976: 123, fig. 250.— Hackett, 1977: 21.— Jaasund, 1977b: 410.— Chauhan & Mairh, 1978: 35.— Lawson, 1980: 58.— Zahid, Begum, & Nizamuddin, 1981: 217, figs. 50–55.— Ohno & Mairh, 1982: table 1.— Teo & Wee, 1983: 104, fig. 109.— Untawale, Dhargalkar, & Agadi, 1983: [36].— Annapurna & B. Rao, 1985: 103–107, figs. 1, 2, table 1.— M. Dave et al., 1987: table 1.— Shameel & Afaq Hussain, 1987: 298.— Heiba, 1989: table 1.— Shameel, Afaq-Husain, & Shahid-Husain, 1989: 180.— Ragothaman & Haranatha Babu, 1990: 305.— Phang & Wee, 1991: 60 (with query).— Basson, 1992: 227.— Jagtap, 1992: 57.— Kalugina-Gutnik, Perestenko, & Titlyanova, 1992: 21 (table 1).— Ragothaman & Haranatha Babu, 1992: 91.— Shameel & J. Tanaka, 1992: 55.— Titlyanova, Perestenko, & Kalugina-Gutnik, 1992: 44.— Anil Kumar & Panikkar, 1994: 53–55, figs. 5–8.— Al Easa, Kornprobst, & Rizk, 1995: 374.
Taxonomic synonym:
* Polysiphonia bharadwajae Sreenivasa Rao, 1967: 169–171, figs. 1–8, Addendum (type locality: Port Okha, Gujarat, India).
INDIAN OCEAN DISTRIBUTION: Diego Garcia Atoll, India, Indonesia, Iran, Maldives, Mauritius, Nicobar Islands, Pakistan, Qatar, Seychelles, Singapore, Sri Lanka, Tanzania.
Note: Australian records of this species have been assigned to Polysiphonia blandii by Womersley (1979: 486). Polysiphonia bharadwajae is included as a synonym on the authority of V. Krishnamurthy & H. Joshi (1970: 26).