Electronic Flora of South Australia Genus Fact Sheet

Genus STRUVEA Sonder 1845: 49

Phylum Chlorophyta – Order Cladophorales – Family Anadyomenaceae

Thallus erect, with a slight to (usually) distinct stipe attached by basal rhizoids, above forming an ovate to elongate reticulate blade. Blade largely complanate, formed of opposite primary branches with interconnecting secondary and tertiary branches, the ends of which attach to adjacent branches by means of short tenacula cells (tertiary branches may remain free in the ultimate spaces of the net). Cells comparatively large (to several mm long in the net), dividing probably by ingrowth of walls; stipe to several cm long, usually with annular constrictions; chloroplast reticulate, with numerous pyrenoids.

Reproduction: Reproduction unknown.

Type species: S. plumosa Sonder.

Taxonomic notes: A genus of about 6 species, distributed mainly in tropical and subtropical seas.

Boergesen (1913, pp.52,56) claimed that cells are formed in Struvea elegans and S. anastomosans by segregative division, but his illustrations are not convincing and it seems more likely that cross walls develop by peripheral ingrowth as in Microdictyon, Anadyomene and Cladophorales generally.

References:

BOERGESEN, F. (1913). The marine algae of the Danish West Indies. Vol. I. Part I. Chlorophyceae. Dansk. bot. Ark. 1(4), 1–160, map.

SONDER, O.W. (1845). Nova algarum genera et species quas in itinere ad oras occidentales Novae Hollandiae, collegit L. Preiss, Ph.Dr. Bot. Ztg 3, 49–57.

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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