Seeds of South Australia
Maireana spongiocarpa (Chenopodiaceae)
Spongy-fruit Bluebush
List of species for Maireana
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Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands
IBRA regions
SUMMARY
Northern Flinders (FLB05)Flinders Lofty Block
 Least Concern   [tolerates disturbance]
Central Flinders (FLB06) 
 Least Concern   [tolerates disturbance]
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [southern limit]
Gawler Lakes (GAW03) 
 Rare   (IUCN: RA d(ii))
Arcoona Plateau (GAW04) 
 Least Concern
Kingoonya (GAW05) 
 Rare   (IUCN: RA d(ii))
Torrens (GAW06) 
 Near Threatened   [tolerates disturbance]
Roxby (GAW07) 
 Least Concern   [tolerates disturbance]
Tallaringa (GVD05)Great Victoria Desert
 Rare   (IUCN: RA d(ii))   [edge of range]
Yellabinna (GVD06) 
 Rare   (IUCN: RA d(ii))
Breakaways (STP01)Stony Plains
 Least Concern   [tolerates disturbance]
Oodnadatta (STP02) 
 Least Concern   [tolerates disturbance]
Murnpeowie (STP03) 
 Least Concern   [tolerates disturbance]
Macumba (STP05) 
 Near Threatened   [tolerates disturbance]
Witjira (STP06) 
 Least Concern   [tolerates disturbance]
Baltana (STP07) 
 Least Concern   [tolerates disturbance]
Sturt Stony Desert (CHC02)Channel Country
 Least Concern   [tolerates disturbance]
Coongie (CHC06) 
 Least Concern   [tolerates disturbance]
Everard Block (CER03)Central Ranges
 Least Concern
IBRA regions
DISPLAY ALL
2 of 6 subregionsFlinders Lofty BlockLeast Concern
6 of 8 subregionsGawlerLeast Concern
, Near Threatened
, Rare
2 of 4 subregionsGreat Victoria DesertRare
6 of 7 subregionsStony PlainsLeast Concern
, Near Threatened
2 of 4 subregionsChannel CountryLeast Concern
Everard Block (CER03)Central RangesLeast Concern
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 Maireana]
SA Flora:
Flora of South Australia Edition 5
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
1700 (38.9 g)
1700 (38.9 g)
26-Aug-2008DJD1110
Lake Eyre
20-Jul-200980%-18°C
Location: BGA — the seeds are stored at the Adelaide Botanic Gardens, MSB — the seeds are stored at the Millennium Seed Bank, Kew, England.
Number of plants: This is the number of plants from which the seeds were collected.
Collection location: The Herbarium of South Australia's region name.
% Viability: Percentage of filled healthy seeds determined by a cut test or x-ray.
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
May-1797%77 250 mg/L gibberellic acid for 24 h;
1% agar;
Incubated under winter conditions
May-1790%77
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)