Maireana luehmannii

Amaranthaceae

Luehman's Bluebush

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plant: Maireana luehmannii DJD3149 plant Dalhousie Springs 6

fruit: Maireana luehmannii DJD3149 fruit Dalhousie Springs

seed: Maireana luehmannii DJD3149 seed (other side)

Regional Species Conservation Assessments per IBRA subregion.

Least concern

Near threatened

Rare

Vulnerable

Endangered

Critically endangered

Extinct

Data deficient

Adelaide

Arkaroola

Ceduna

Coober Pedy

Hawker

Innamincka

Marla

Marree

Mount Gambier

Oodnadatta

Renmark

Wudinna

Keith

Yunta

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Botanical art

Kath Alcock paintings: 2

Prior names

Bassia luehmannii

Common names

Luehman's Bluebush

Distribution and status

Herbarium region: Lake Eyre
AVH map: SA distribution map (external link)

Seeds stored:

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Location	No. of seeds (weight grams)	Number of plants	Date collected	Collection number Collection location	Date stored	% Viability	Storage temperature
BGA	9,500 (57.72 g)		1-Sep-2015	DJD3149 Lake Eyre	2-May-2017	95%	+5°C, -18°C, -80°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:

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Date	Result	T0	T50	Pre-treatment \| Germination medium \| Incubator: Photoperiod / Thermoperiod
Jul-16	52%	7	35	500 mg/L gibberellic acid 24 h; 1% agar; Incubated under spring/autumn conditions
Jul-16	52%	14	35	1% agar; Incubated under spring/autumn conditions
Jul-16	0%	NA	NA	leached in water 72 h; 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)

Witjira (STP06)	Stony Plains	Vulnerable (IUCN: VU D2) [localised around Dalhousie & mound springs; southern outliers, Northern Ter sp. Very little known]
Mann-Musgrave Block (CER01)	Central Ranges	Vulnerable (IUCN: VU D2) [southern outliers, Northern Territory sp. Very little known]