Seeds of South Australia
Sclerolaena fontinalis (Chenopodiaceae)
Mound Spring Bindyi
List of species for Sclerolaena
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Herbarium region:
Lake Eyre
NRM region:
South Australian Arid Lands
IBRA region
Witjira (STP06)Stony Plains
 Vulnerable   (IUCN: VU D2)   [restricted to mound springs; endemic to SA]
RSCA map:
Regional Species Conservation Assessments per IBRA subregion. Please click the thumbnail map.
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Sclerolaena]
SA Flora:
Flora of South Australia Edition 5
Name derivation:
'Sclerolaena' from the Greek skleros, meaning hard, and chlaina, meaning covering, referring to the hard fruiting perianth covering the seed;  fontinalis meaning from fountains or springs and pertains to its habitat near mound springs.  
Distribution:
Endemic to South Australia, localised near Dalhousie Springs.
Status:
Rare in South Australia
Plant description:
Compact rounded shrub to 30 centimetres high with fleshy green leaves, covered with white woolly hairs.
Fruit type:
Woody, hairy fruit with  5  spines; attachment basal, circular, 0.5-0.8 mm diam.
Seed type:
Ellipsoid to circular, brown, convex seed
Embryo type:
Peripheral
Seed collecting:
Collect seeds from shrubs when they are mature and easily detached.
Seed cleaning:
Remove twigs, leaves and other material using a sieve. Leave fruits to dry before storage
Seed viability:
 
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
Jul-1612%21 dNA 500 mg/L gibberellic acid 24 h;
1% agar;
Incubated under spring/autumn conditions
Jul-160%NANA leached in water 72 h;
1% agar;
Incubated under spring/autumn conditions
Jul-160%NANA
1% agar;
Incubated under spring/autumn 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)