Electronic Flora of South Australia Genus Fact Sheet

Genus MICRODICTYON Decaisne 1841: 115

Phylum Chlorophyta – Order Cladophorales – Family Anadyomenaceae

Thallus composed of non-stipitate, reticulate blades with open meshes, holdfast usually obscure; primary and secondary cell filaments forming veins, branching opposite, alternate or flabellate, anastomosing by means of un-modified tertiary cells; cross walls formed by ingrowth from periphery (Enomoto & Hirose 1971).

Reproduction: Reproduction with isomorphic generations, the sporophyte producing quadriflagellate zoospores and the gametophyte biflagellate isogametes (Iyengar & Ramanathan 1941).

Type species: M. agardhianum Decaisne.

Taxonomic notes: A genus of some 20 species (Setchell 1929), largely tropical or subtropical, with one species known from southern Australia.


DECAISNE, J. (1841). Plantes de l'Arabie heureuse. Archs. Mus. natn. Hist. nat., Paris 2, 89–199, Plates 5–7.

ENOMOTO, S. & HIROSE, H. (1971). On the septum formation of Microdictyon okainurai. Bull. Jap. Soc. Phycol. 19, 90–93.

IYENGAR, M.O.P. & RAMANATHAN, K.R. (1941). On the life-history and cytology of Microdictyon tenuius (Ag.) Decsne. J. Indian Bot. Soc. 20, 157–159, Plate 3.

SETCHELL, W.A. (1929). The genus Microdictyon. Univ. Calif Publ. Bot. 14, 453–588.

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

Author: H.B.S. Womersley

Publication: Womersley, H.B.S. (31 May, 1984)
The Marine Benthic Flora of Southern Australia
Part I
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