Polysiphonia Greville, 1823

de Clerck, Olivier, Coppejans, Eric, Schils, Tom, Verbruggen, Heroen, Leliaert, Frederik, de Vriese, Thomas & Marie, Daniel, 2004, The marine red algae of Rodrigues (Mauritius, Indian Ocean), Journal of Natural History 38 (23), pp. 3021-3057 : 3047-3048

Polysiphonia Greville

* Polysiphonia platycarpa Børgesen, 1934: 23–25 , figures 15–17 Reference: Jaasund, 1976: 123, figure 251.

Type locality. Bombay, India .

Vouchers. HEC 14659 (zF), 19 September 2001, Gravier (s.s. 16) ; HEC 14684 (zF) and HEC 14708, 20 September 2001, Rivière Banane (s.s. 12) .

Ecology. Epiphytic on Gelidiopsis intricata , Liagora ceranoides and Digenea simplex in mid-intertidal rock pools.

Indian Ocean distribution. India, Kuwait, Mauritius ( Børgesen, 1945: 34), Nicobar Islands, Pakistan, Rodrigues (this paper), Singapore, Tanzania.

* Polysiphonia cf. sertularioides (Grateloup) J. Agardh, 1863: 941 References: Lauret, 1967: 350, pls 2, 3; Womersley, 1979: 478, figure 5A–D ; Payri et al., 2000: 286, figures p. 287.

Type locality. Cette , France .

Vouchers. HEC 14605 (zF) and HEC 14606 (zF), 18 September 2001, western side of Cotton Bay (s.s. 13) ; HEC 14666 (zF), 19 September 2001, Gravier (s.s. 16) ; HEC 14780 (zF) and HEC 14781, 25 September 2001, Grand Bassin (s.s. 1) .

Ecology. Epilithic as well as epiphytic on Liagora ceranoides and Eucheuma odontophorum var. mauritianum in mid- to low intertidal rock pools.

Indian Ocean distribution. Australia, India, Maldives, Rodrigues (this paper).

Tolypiocladia Schmitz

* Tolypiocladia glomerulata (C. Agardh) Schmitz , in Schmitz and Falkenberg, 1897: 441–442

References: Jaasund, 1976: 125, figure 253; Magruder and Hunt, 1979: 95, figure 2

p. 94; Tseng, 1984: 160, pl. 83, figure 4 ; Cribb, 1996: 117, figure p. 116; Abbott,

1999: 442, figure 132F–H; Coppejans and Millar, 2000: 338, figure 32; Littler and

Littler, 2003: 158, middle figure p. 159.

Type locality. Shark Bay , Western Australia .

Vouchers. HEC 14801 ( F), 25 September 2001, Grand Baie (s.s. 11) ; HEC 14850 (zF), 29 September 2001, Grand Paté (s.s. 7) .

Ecology. Epilithic on a dead acroporid coral branch along the reef slope at 218 m as well as epiphytic on Martensia elegans in the same biotope.

Indian Ocean distribution. Australia, India, Indonesia, Iran, Kenya, Laccadives, Madagascar, Malaysia, Maldives, Mauritius ( Børgesen, 1952: 69), Nicobar Islands, Pakistan, Rodrigues (this paper), Seychelles, Somalia, South Africa, Sri Lanka, Tanzania.

Figures

FIGS 1–7. Rhodophytes. (1) Gracilaria corticata (HEC 14627). (2) Renouxia antillana (HEC 14804). (3) Platoma cyclocolpa (HEC 14805). (4) Titanophora pikeana (HEC 14875). (5, 6) Cryptonemia crenulata (HEC 14876): (5) general morphology; (6) serrate margin. (7) Cryptonemia crenulata (HEC 15134b): cross-section showing cortex and medulla with densely stained ganglionic cells. Scale bars: 1 cm (1, 3, 4); 2 cm (2, 5); 5 mm (6); 50 Mm (7).