Electronic Flora of South Australia Genus Fact Sheet

Genus SURINGARIELLA Womersley & Bailey nom. nov. [Suringaria Kylin 1940: 36, non Suringaria Pierre 1886: 635]

Phylum Phaeophyta – Order Chordariales – Family Chordariaceae

Thallus simple or branched (mainly from near the holdfast), cylindrical, slightly mucoid, usually 10–50 cm long and 2–6 (–10) mm in diameter. Medulla (from a juvenile stage less than 0.5 mm high) largely of irregularly entwined hyphal filaments, with the slightly larger longitudinal filaments visible for several mm from the base. Cortex arising directly from peripheral medullary filaments (without a subcortex), and consisting of branched, determinate, cylindrical, assimilatory filaments with short cells (L/B 1–2). Phaeophycean hairs present, arising from inner cortical or outer medullary cells.

Reproduction: Reproduction by elongate-ovoid to conical plurilocular sporangia (rare) with irregularly positioned locules, and by elongate-ovoid unilocular sporangia borne laterally on inner cells of cortical filaments.

Life history unknown.

Type species: S. harveyana (J. Agardh) Womersley & Bailey comb. nov.

Taxonomic notes: Suringariella contains only the type species, characterised by the presence of phaeophycean hairs, a medulla of entwined and not longitudinal filaments, and a cortex of branched assimilatory filaments. Apart from the basic difference in habit, Suringariella is similar in structure to Petrospongium in the Leathesiaceae.

Suringaria Kylin 1940 is predated by Suringaria Pierre 1886 in the Barringtoniaceae (Symplocaceae) with the type species S. cambodiana Pierre from Cambodia; the algal genus is here renamed Suringariella.

References:

KYLIN, H. (1940). Die Phaeophyceenordnung Chordariales. Acta Univ. lund. N.F. Avd. 2, 36(9), 1–67, Plates 1–8.

PIERRE, J.B.L. (1886). Sur le genre Suringaria. Bull. Mens. Soc. Linn. Paris. 1, 635–636.

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

Author: H.B.S. Womersley & A. Bailey

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