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Electronic Flora of South Australia Species Fact Sheet

Delesseria lacepedeana Reinbold 1898: 47.

Phylum Rhodophyta – Family Delesseriaceae

Selected citations: De Toni 1924: 346. Millar & Huisman 1996b: 127. Millar & Wynne 1992d: 111.


Hypoglossum lacepediana (Reinbold) Lucas 1929b: 50. Lucas & Perrin 1947: 229.

Type from Lacepede Bay, S. Aust.; not located.

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

Taxonomic notes: Reinbold's description translates as "Frond subcartilaginous, costa thick, evanescent below the apices, veins absent, subdichotomous-pinnate, laterals proliferating sparsely from the margin or rarely within the margin from the costa, oval or lanceolate; segments with entire margins and rounded apices, about 4–5 mm broad; antheridial sori on the laterals, oblong to rotund, tetrasporangia cystocarps . Scarcely adherent to paper. (II, 204). Lacepede Bay. leg. Dr. Engelhart."

"This species resembles in habit D. denticulata, but is on the whole narrower and essentially differs from this in the smooth margins of the segments. The proliferations, which are scattered and without definite order, also probably arise from the damaged apices of the segments, sprouting exceptionally from the small laterals, so that the branching develops solely from part of the lamina. The whole plant throughout has a fairly uniform width. The length is about 15 cm."

This name must remain a nomen dubium until the type specimen can be located. No specimens have been found in M or L, or in other herbaria (pers. comm. also from M. Wynne).

It is possible it may be an older name for Robea costata or Platyclinia crenulata, but this is uncertain from the description.

* Species of uncertain status.

This species is uncertain, based on inadequately known material, lack of the type specimen, or an isolated record.


DE TONI, G.B. (1924). Sylloge Algarum omnium hucusque Cognitarum. Vol. 6. Florideae. (Padua.)

LUCAS, A.H.S. & PERRIN, F. (1947). The Seaweeds of South Australia. Part 2. The Red Seaweeds. (Govt Printer: Adelaide.)

LUCAS, A.H.S. (1929b). A census of the marine algae of South Australia. Trans. R. Soc. S. Aust. 53, 45–53.

MILLAR, A.J.K. & HUISMAN, J.M. (1996b). Dicroglossum crispatulum gen. et comb. nov. from Western Australia, representing a new tribe within the Delesseriaceae (Rhodophyta). J. Phycol. 32, 127–137.

MILLAR, A.J.K. & WYNNE, M.J. (1992d). An account of Delesseria aemula sp. nov. (Delesseriaceae, Rhodophyta) from New South Wales, Australia. Jpn. J. Phycol. (Sôrui) 40, 111–119.

REINBOLD, T. (1898). Die Algen der Lacepede und Guichen Bay (Süd Australien) und deren näherer Umgebung, gesammelt von Dr. A. Engelhart-Kingston. II. Nuova Notarisia 9, 33–54.

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

Author: H. B. S. Womersley

Publication: Womersley, H.B.S. (24 February, 2003)
The Marine Benthic Flora of Southern Australia
Rhodophyta. Part IIID. Ceramiales – Delesseriaceae, Sarcomeniaceae, Rhodomelaceae
Reproduced with permission from The Marine Benthic Flora of Southern Australia Part IIID 2003, by H.B.S. Womersley. Australian Biological Resources Study, Canberra. Copyright Commonwealth of Australia.

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