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Benthic Marine Algae of Rotuma Island 377
Habitat and Remarks
Found growing in intimate association with var. typica in back reef areas at Hapmafau.
Quite rare, but conspicuous by its more fragile looking habit and vivid green colour.
Caulerpa cupressoides (Vahl) C. Agardh var. mamillosa (Montagne) Weber-van Bosse
1898: 332, pl. 28, figs 2-7 (syntype localities: Galega and Manga-Reva Islands, Solomon
Islands); Borgesen 1907: 368, fig. 13; 1913: 135, fig. 108; Setchell 1935: 261, pls 11-15;
Levring 1960: 122; Taylor 1960: 148, pl. 15, fig. 4; pl. 18, fig. 11; Chapman 1961: 144, fig.
169; Womersley and Bailey 1970: 275; Payri and Meinesz 1985a: 507; Coppejans 1992:
391; Coppejans and Prud'homme van Reine 1992a: 173; 19926: 679, fig. 3A, 8B; Millar and
Kraft 1994b: 436.
Caulerpa mamillosa Montagne 1838.
(Figs 25,35)
Plants stout and bushy, erect foliar axes closely spaced at 0.5-1 cm intervals along a
relatively thick spreading stolon up to 2.5 mm in diameter. The foliar axes several times
forked very early from the base, bearing mucronate, obvoid to subnavicular ramelli in
several ranks.
Distribution
Fiji, Solomon Islands, Tahiti, Papua New Guinea, Indonesia, Jamaica, tropical Americas.
Fijian Record
South andN'Yeurt 1993: 116, fig. 10.
Rotuman Distribution
Hapmafau (HAP141 USP 362, HAP161 USP 363).
Habitat and Remarks
Found on vertical rocky platforms in back reef locations at a lower level than other
Caulerpa species. Plants are conspicuous by their stout appearance and bushy habit.
Caulerpa racemosa (Forsskil) J. Agardh 1873: 35; Lucas 1935: 199; Gilbert 1946: 78;
Egerod 1952: 369; Taylor 1960: 151, pl. 17, figs 1, 3, 4, 6, 7; pl. 18, figs 2-5, fig. 7;
Chapman 1961: 145; Meiiez 1961: 51; Taylor 1966: 350; Trono 1968: 171, pl. 14, fig. 9, pl.
16, fig. 7; Dawes 1974: 77, fig. 32; Tsuda 1976b: 327; Chapman 1977: 161; Taylor 1977: 8;
Tsuda and Wray 1977: 95; Meiiez and Calumpong 1982: 7; Payri and Meinesz 1985a: 507;
Trono 1986: 217, fig. 13; Lewis 1987: 22; Lewis and Norris 1987: 9; Silva et al. 1987: 106;
Garrigue and Tsuda 1988: 57; Abbott 1989: 226; Coppejans and Beeckman 1989: 384;
Coppejans 1992: 401, figs 4C-D; Coppejans and Prud'homme van Reine 1992b: 698, figs
18A-B; Littler et al. 1989: 44; Tsuda 1991: 41; South and Yen 1992: 127 (var. macrophysa);
Verheij and Prud'homme van Reine 1993: 122, pl. 1, figs 8, 9, pl. 2, figs 1-6; Millar and
Kraft 19946: 439.
Fucus racemosa Forsskdl 1775: 191 (type locality: Suez, Egypt).
(Figs 28, 36)
Fijian Records
Kasahara 1988; South 1991: 5; South and Kasahara 1992: 49; South and N'Yeurt 1993:
124, fig. 19.