Electronic Flora of South Australia Species Fact Sheet

Erythrocladia subintegra Rosenvinge 1909: 73, figs 13,14.

Phylum Rhodophyta – Class Bangiophyceae – Order Compsopogonales – Family Erythrotrichiaceae

Selected citations: Abbott & Hollenberg 1976: 284, fig. 227. Chapman 1969: 10, fig. 3A. Dawson 1953: 5. Levring 1953: 462. Nichols & Lissant 1967: 6, pls 1–6.

Synonyms

Erythropeltis subintegra (Rosenvinge) Kornmann & Sahling 1985: 224, fig. 8.

Sahlingia subintegra (Rosenvinge) Kornmann 1989: 227, figs 1,6–13.

Thallus (Fig. 1I) minute (usually 20–100 µm in diameter), forming more or less circular discs of radiating filaments usually closely adherent laterally, with a marginal row of single or often furcate apical cells, branching from the marginal cells (Fig. 1I), becoming 2–3 cells thick centrally; cells 4–8 µm in diameter and 6–10 (–25) µm long, rhodoplasts parietal, laminate, with a single pyrenoid.

Reproduction: Reproduction by monospores from sporangia cut off from central cells of the disc.

Type from Mollegrund, Denmark, on Polysiphonia urceolata, 11–15 m deep; syntype in C (see Dawson 1953, p. 5).

Selected specimens: Commercial Fishing Marina, Port Adelaide, S. Aust., on Chaetomorpha linum, 0–0.5 m deep on pontoons (Womersley, 22.iii.1988; AD, A58641). Port Noarlunga, S. Aust., on Caulerpa scalpelliformis, upper sublittoral near jetty (Womersley, 4.iv.1988; AD, A58643).

Distribution map based
on current data relating to
specimens held in the
State Herbarium of SA

Distribution: Cosmopolitan.

In southern Australia probably widespread but rarely preserved in herbaria. Levring (1953, p. 462) recorded it from Cottesloe, W. Aust. around southern Australia and Tasmania to Palm Beach, N.S.W.

Taxonomic notes: Views on the relationships of this species with the type are discussed above, under the genus.

References:

ABBOTT, I.A. & HOLLENBERG, G.J. (1976). Marine Algae of California. (Stanford Univ. Press: Stanford.)

CHAPMAN, V.J. (1969). The marine algae of New Zealand. Part III: Rhodophyceae. Issue 1: Bangiophycidae and Florideophycidae (Némalionales, Bonnemaisoniales, Gélidiales). (Cramer: Germany.)

DAWSON, E.Y. (1953). Marine red algae of Pacific Mexico. Part I. Bangiales to Corallinaceae subf. Corallinoideae. Allan Hancock Pacif. Exped. 17, 1–239.

KORNMANN, P. & SAHLING, P.-H. (1985). Erythropeltidaceen (Bangiophyceae, Rhodophyta) von Helgoland. Helgoländer Meeresunters. 39, 213–236.

KORNMANN, P. (1989). Sahlingia nov. gen. based on Erythrocladia subintegra (Erythropeltidales, Rhodophyta). Br. phycol. J. 24, 223–228.

LEVRING, T. (1953). The marine algae of Australia. I. Rhodophyta: Goniotrichales, Bangiales and Némalionales. Arkiv för Bot. Ser. 2, 2, 457–530.

NICHOLS, H.W. & LISSANT, E.K. (1967). Developmental studies of Erythrocladia Rosenvinge in culture. J. Phycol. 3, 6–18.

ROSENVINGE, L.K. (1909). The marine algae of Denmark. Part 1. Introduction. Rhodophyceae. 1. (Bangiales and Némalionales). K. danske Vidensk. Selsk. Biol. Skr., 7 Raekke, Afd. 7, 1–151, Plates 1, 2,2 maps.

The Marine Benthic Flora of Southern Australia Part IIIA complete list of references.

Author: H.B.S. Womersley

Publication: Womersley, H.B.S. (14 January, 1994)
The Marine Benthic Flora of Southern Australia
Rhodophyta. Part IIIA, Bangiophyceae and Florideophyceae (to Gigartinales)
Reproduced with permission from The Marine Benthic Flora of Southern Australia Part IIIA 1994, by H.B.S. Womersley. Australian Biological Resources Study, Canberra. Copyright Commonwealth of Australia.

Illustration in Womersley Part IIIA, 1994: FIG. 1I.

Figure 1   enlarge

Fig. 1. A, B. Porphyridium purpureum (AD, A59695). A. Cells in patches on Dictyota fenestrata. B. Cells each with a rhodoplast and central pyrenoid. C. Chroodactylon ornatum (AD, A19851). Thallus showing branching pattern and cell detail. D, E. Stylonema alsidii (AD, A58642). D. Branching pattern. E. Cells each with a stellate rhodoplast and pyrenoid. F, G. Stylonema cornu-cervi (AD,A58644). F. Thallus (on Caulerpa) showing cell arrangement. G. Cells each with a rhodoplast and pyrenoid. H. Erythrocladia irregularis (on AD, A31991 of Chaetomorpha linum). Thallus showing branching pattern of cells and cell detail. I. Erythrocladia subintegra (AD, A58641). Thallus showing branching pattern of cells and detail in a few.

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