Kangaroo Island Spider-flower,
Rough Spider-flower
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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
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Kangaroo Island (KAN01) | Kanmantoo | Vulnerable (IUCN: VU D2) (Probable Decline) [habitat dependant; localised on east end of KI; conserved in Beyeria & a few HA's; KI endemic; mostly on roadsides; needs 'crab hole' soils; at risk on dirt roads] |
Botanical art
Kath Alcock paintings: 2
Prior names
Grevillea lavandulacea, partly
Grevillea rogersii, partly
Common names
Kangaroo Island Spider-flower
Rough Spider-flower
Distribution and status
Herbarium region: Kangaroo Island
NRM region: Kangaroo Island
AVH map: SA distribution map (external link)
Location | No. of seeds (weight grams) | Number of plants | Date collected | Collection number Collection location | Date stored | % Viability | Storage temperature | BGA MSB | 250 (5 g) 1,000 (20.5 g) | 50+ | 17-Nov-2015 | TST1225 Kangaroo Island | 2-May-2017 | 70% | -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 |
Jul-16 | 88% | 28 | 56 |
dry heat 90°C oven 15 min, 30% hydrogen peroxide 20 min, water rinse, 10% smoke water 24 h; 1% agar; Incubated under spring/autumn conditions |
Jul-16 | 34% | 35 | NA |
dry heat 90°C oven 15 min, 30% hydrogen peroxide 20 min, water rinse, 10% smoke water + 500 mg/L gibberellic acid 24 h; 1% agar; Incubated under spring/autumn conditions |
Jul-16 | 9% | 56 | NA |
30% hydrogen peroxide 20 min, water rinse; 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)