Seeds of South Australia
Elacholoma prostrata (Scrophulariaceae)
Small Monkey-flower
List of species for Elacholoma
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Seed collecting:
October to November
Herbarium regions:
Lake Eyre, Murray
NRM regions:
South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
South Olary Plain (MDD01)Murray Darling Depression
 Vulnerable   (IUCN: VU B2ab(i,ii,iii); D2)   (Probable Decline)   [needs floods; some records not databased]
Murray Scroll Belt (RIV06)Riverina
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)   [needs floods; some records not databased]
Strzelecki Desert (SSD05)Simpson Strzelecki Dunefields
 Rare   (IUCN: RA d(i,ii))   [limited habitat]
Sturt Stony Desert (CHC02)Channel Country
 Near Threatened   [mat-forming sp]
Coongie (CHC06) 
 Least Concern   [mat-forming sp; strong-hold here]
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 Elacholoma]
Name derivation:
Latin 'mimus' mimic actor; evidently alluding to a resemblance of the corolla mouth and limb to a mask and 'prostrata' prostrate
Distribution:
Grows on the open margins of swamps, creeks or river flats, or in temporarily inundated areas, in clay or sand, sometimes saline soils. Found only in the far North East of South Australia.
Plant description:
Prostrate annual or perennial, forming broad mats, rooting at the nodes. Leaves sessile, ovate to elliptic, sometimes narrowly, rarely broadly so, 0.2-0.6 cm long. Flowers solitary in axils. Corolla more or less rotate; tube 6–15 mm long, the rim white, the lobes spreading, 4-5 mm long, blue or pink, rarely white. Flowering July - September (Lake Eyre), April (Murray).
Fruit type:
Capsule obovoid, 4–5 mm long.
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
June 20120%NANA None
70mm glass petri dishes on 1% w/v agar supplemented with 100mg/L Potassium Nitrate
Incubated under winter conditions
June 20120%NANA None
70mm glass petri dishes on 1% w/v agar
Incubated under winter conditions
June 20120%NANA None
70mm glass petri dishes on 1% w/v agar supplemented with 250mg/L Gibberellic acid (pH adjusted to 6.5)
Incubated under winter conditions
June 20120%NANA None
70mm glass petri dishes on 1% w/v agar
Incubated under spring/autumn conditions
June 20120%NANA None
70mm glass petri dishes on 1% w/v agar supplemented with 250mg/L Gibberellic acid (pH adjusted to 6.5)
Incubated under spring/autumn conditions
June 20120%NANA None
70mm glass petri dishes on 1% w/v agar supplemented with 100mg/L Potassium Nitrate
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)