Seeds of South Australia
Goodenia berringbinensis (Goodeniaceae)
Arid Swamp Goodenia
List of species for Goodenia
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Seed collecting:
September to October
Herbarium region:
Lake Eyre
NRM region:
South Australian Arid Lands
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Goodenia]
Name derivation:
Goodenia named after Samuel Goodenough (1743-1827), an Bishop of Carlisle, an amateur botanist and collector and vice-president of the Royal Society. Berringbinensis named after Berringbine Creek, Belele Station, Western Australia, where the type specimen was collected from.
Only one record in South Australia, from north of Coober Pedy, growing on mounds in an ephemeral lignum swamp with Eleocharis pallens, Calotis hispidula, Peplidium aithocheilum and Calandrinia pumila. Also found in Western Australia.
Native. Very rare in South Australia. Rare in Western Australia.
Plant description:
Minutely glandular decumbent, facultative amphibious herb with flowering stalks to 30 cm long and thin tap roots. Leaves two types, elliptic to 50 mm long and 10 mm wide on long extended stalk to 350 mm long when floating on the surface. In dried condition mostly basal, oblanceolate to spathulate to 60 mm long and 10 mm wide, tapering gradually into a stalk to 30 mm long, margin entire or with a few teeth, hairy. inflorescence in loose spreading terminal spike with elongated yellow (purple striation) fan-flowers. Flowering between June and October.
Fruit type:
Brown hairy ellipsoid capsule to 8 mm long with sepals attached about half way and splitting in two.
Seed type:
Flat light brown ovoid seed to 0.8 mm long and 0.4 mm wide, with a smooth surface and clear wing around the outer edge.
Embryo type:
Seed collecting:
Collect capsules that are maturing, turning brown, easily split open and with brown seeds inside.
Seed cleaning:
Place the capsules in a tray and leave to dry for a week. Then rub the capsules with your hands to dislodge the seeds. Use a sieve to separate the unwanted material. Be careful as the seeds are very fine. Store the seeds with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place.
Seed viability:
From one collection, the seed viability is high, at 100%.
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
Jul-1710%28NA 500 mg/L gibberellic acid for 24 h;
1% agar;
Incubated under spring/autumn conditions
1% agar;
Incubated under spring/autumn conditions
1% agar;
Incubated under winter conditions
Jul-170%NANA 500 mg/L gibberellic acid for 24 h;
1% agar;
Incubated under winter conditions
Result: Maximum percentage of germination observed.
T0: Number of days before first germinant observed.
T50: Number of days to achieve 50% germination.
Pre-treatment: The initial treatment that the seeds received prior to placement on germination media.
Germination medium: The substrate that seeds were placed on for the duration of the germination experiment.
Incubator conditions:
Photoperiod: The duration of light exposure that the seeds were subject to during a 24 hour period.
Thermoperiod: The constant or diurnal temperatures that seeds were subject to during a 24 hour period.
Winter conditions: 15°C 20 h (3am→11pm); 5°C 4 h (11pm→3am) / 10 h light (8am→6pm); 14 h dark (6pm→8am)
Spring/Autumn conditions: 22°C 12 h (8am→8pm); 10°C 12 h (8pm→8am) / 12 h light (8am→8pm); 12 h dark (8pm→8am)
Summer conditions: 30°C 14 h (6am→8pm); 15°C 10 h (8pm→6am) / 14 h light (6am→8pm); 10 h dark (8pm→6am)