Electronic Flora of South Australia Genus Fact Sheet

Genus SCABERIA Greville 1830: xxxvi

Phylum Phaeophyta – Order Fucales – Family Cystoseiraceae

Thallus usually 20–100 cm long, with a short stipe from a discoid-conical holdfast, bearing several short, radially branched, smooth, primary branches, some of which develop into long, branched, axes covered with laterally appressed, short, peltate, lobed, determinate laterals, which give the long branches a verrucose appearance, 4–8 (–10) mm in diameter. Determinate laterals with a stalk 0.5–1 mm long and peltate head 2–4 mm across, some containing vesicles and conceptacles in their walls. Growth from a three-sided apical cell. Structure of a central medulla, cortex of isodiametric cells and a surface meristoderm.

Reproduction: Conceptacles developed in short lateral branches, in walls of peltate laterals, bisexual, with scattered ostioles; oogonia with a single egg.

Type species: S. agardhii Greville.

Taxonomic notes: Scaberia is a monotypic genus endemic to southern Australia, characterised by the long primary branches becoming covered with laterally appressed, peltate, determinate laterals, giving them a verrucose appearance, and with vesicles and conceptacles within their walls.

References:

GREVILLE, R.K. (1830). Algae Britannicae. (Edinburgh.)

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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