Creamy Stackhousia,
Creamy Candles
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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
Display IBRA region text
| Southern Flinders (FLB04) | Flinders Lofty Block | Rare (IUCN: EN D) |
Botanical art
Kath Alcock paintings: 5
Prior names
Stackhousia flava, partly
Common names
Creamy Stackhousia
Creamy Candles
Etymology
'Stackhousia' after the Cornish botanist and artist John Stackhouse (1742-1819) and Greek 'mono' single, 'gyne' woman; single ovary.
Distribution and status
Found in the Southern Flinders Ranges. Common on loam or sandy-loam soils, in sclerophyll woodland.
Herbarium region: Flinders Ranges
NRM region: Northern and Yorke
AVH map: SA distribution map (external link)
Plant description
Glabrous perennial to 50 cm high. Leaves linear to lanceolate; rarely broad-elliptic; to 30 mm long, 2�4 mm wide. Inflorescence a dense cylindrical spike; corolla cream-white to light-yellow; the tube 5-8 mm long; the lobes 3.2-5.4 mm long. Flowering July - December. Fruits are fruit a non-fleshy schizocarp; 3 seeded Seeds are seed broad-obovoid to broad-ellipsoid; green-brown, 1.5�3 mm; rugose to reticulate, the basal cavity shallow Seed embryo type is straight
Seed collection and propagation
Collect seeds between November and December. Remove flower spikes with mature seeds and store in until dry. Pass seed through sieves and aspirate to remove unwanted material Germination 80%, imbibed on 1% w/v agar for 5 weeks at 15�C. Germinated on 1% w/v agar supplemented with 250mg/L Gibberellic acid, 8/16 dark/light, 15�C. See http://data.kew.org/sid
| Location | No. of seeds
(weight grams) | Number
of plants | Date
collected | Collection number
Collection location | Date
stored | % Viability | Storage
temperature |
MSB |
1,660 (6 g) | 60 | 17-Nov-2005 | MKJ148
Murray | | | |
| BGA | 2,500 (7.92 g) | 100+ | 26-Nov-2008 | DJD1290
Flinders Ranges | 20-Jul-2009 | 96% | -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:
Display
| Date | Result | T0 | T50 | Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod |
| Apr-09 | 38% | 48 | NA |
1% agar with 250 mg/L gibberellic acid (pH 6.5);
Incubated under spring/autumn conditions |
| Apr-09 | 12% | 84 | NA |
1% agar with 100mg/L potassium nitrate;
Incubated under spring/autumn conditions |
| Apr-09 | 6% | 112 | NA |
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)
