Electronic Flora of South Australia Genus Fact Sheet

Genus SPHACELLA Reinke 1890: 206

Phylum Phaeophyta – Order Sphacelariales – Family Sphacelariaceae

Thallus 1–3 mm long, forming dense masses or tufts of erect filaments on sporochnalean hosts, with basal endophytic filaments. Erect filaments irregularly and sparsely to moderately branched, uniseriate, without longitudinal divisions. Growth of each filament from an apical cell with the subapical or next cell commonly also dividing transversely into two. Hairs absent. Cells with few to several small discoid phaeoplasts and one or two aggregations of physodes.

Reproduction: Reproduction by ovoid, unilocular sporangia, with one or two pedicel cells or terminating a short branch.

Type species: S. subtilissima Reinke.

Taxonomic notes: A monospecific genus previously only known from the Mediterranean.


REINKE, J. (1890) Uebersicht der bisher bekannten Sphacelariaceen. Ber. Deutsch. Bot. Ges. 8, 201–215.

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

Author: H.B.S. Womersley

Publication: Womersley, H.B.S. (14 December, 1987)
The Marine Benthic Flora of Southern Australia
Part II
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