Seeds of South Australia
Brachyscome lineariloba (Compositae)
Dwarf Daisy
List of species for Brachyscome
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Seed collecting:
October to December
Herbarium regions:
North Western, Lake Eyre, Nullarbor, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Alinytjara Wilurara, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Bridgewater (NCP01)Naracoorte Coastal Plain
 Near Threatened
Lucindale (NCP03) 
 Near Threatened
Tintinara (NCP04) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Vulnerable   (IUCN: VU D2)   [only known from 3 coastal pops, none in reserves]
Fleurieu (KAN02) 
 Near Threatened
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [edge of range; annual, reasonably hardy; undercollected; weed invasion, loss of range - threats]
Broughton (FLB02) 
 Least Concern
Olary Spur (FLB03) 
 Least Concern
Southern Flinders (FLB04) 
 Least Concern
Northern Flinders (FLB05) 
 Least Concern
Central Flinders (FLB06) 
 Least Concern
Southern Yorke (EYB01)Eyre Yorke Block
 Least Concern
St Vincent (EYB02) 
 Least Concern
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
South Olary Plain (MDD01)Murray Darling Depression
 Least Concern
Murray Mallee (MDD02) 
 Least Concern
Murray Lakes and Coorong (MDD03) 
 Least Concern
Lowan Mallee (MDD04) 
 Least Concern
Braemer (MDD07) 
 Least Concern
Murray Scroll Belt (RIV06)Riverina
 Least Concern
Myall Plains (GAW01)Gawler
 Least Concern
Gawler Volcanics (GAW02) 
 Least Concern
Gawler Lakes (GAW03) 
 Least Concern
Arcoona Plateau (GAW04) 
 Least Concern
Kingoonya (GAW05) 
 Least Concern
Torrens (GAW06) 
 Least Concern   [under represented]
Roxby (GAW07) 
 Least Concern   [under represented]
Commonwealth Hill (GAW08) 
 Least Concern   [under represented]
Yellabinna (GVD06)Great Victoria Desert
 Least Concern
Nullarbor Plain (NUL02)Nullarbor
 Least Concern
Yalata (NUL03) 
 Least Concern
Barrier Range (BHC01)Broken Hill Complex
 Least Concern
Barrier Range Outwash (BHC04) 
 Least Concern
Bimbowrie (BHC05) 
 Least Concern
Curnamona (BHC06) 
 Least Concern
Warriner (SSD04)Simpson Strzelecki Dunefields
 Least Concern   [under represented]
Strzelecki Desert (SSD05) 
 Least Concern   [under represented]
Breakaways (STP01)Stony Plains
 Least Concern
Oodnadatta (STP02) 
 Least Concern
Murnpeowie (STP03) 
 Least Concern
Peake-Dennison Inlier (STP04) 
 Least Concern   [under represented]
Baltana (STP07) 
 Least Concern
IBRA regions
DISPLAY ALL
3 of 4 subregionsNaracoorte Coastal PlainLeast Concern
, Near Threatened
2 of 2 subregionsKanmantooNear Threatened
, Vulnerable
6 of 6 subregionsFlinders Lofty BlockLeast Concern
, Rare
5 of 5 subregionsEyre Yorke BlockLeast Concern
5 of 6 subregionsMurray Darling DepressionLeast Concern
Murray Scroll Belt (RIV06)RiverinaLeast Concern
8 of 8 subregionsGawlerLeast Concern
Yellabinna (GVD06)Great Victoria DesertLeast Concern
2 of 3 subregionsNullarborLeast Concern
4 of 4 subregionsBroken Hill ComplexLeast Concern
2 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
5 of 7 subregionsStony PlainsLeast 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 Brachyscome]
Name derivation:
Brachyscome from the Greek 'brachys' meaning short and 'kome' meaning hair; referring to the short bristles or hairs of the pappus. Lineariloba from the Latin 'linearis' meaning linear, straight and 'lobos' meaning lobe; referring to the linear leaf lobes.
Distribution:
Found across much of South Australia except the north-west and north-east corners, growing in a wide range of habitats, including pastures, gibber plains, shrub steppe, mallee and woodland. Also found in Western Australia, New South Wales and Victoria.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Annual herb to 15 cm high with very short stems, branching at ground level. Leaves basal and near-basal, not forming a rosette, lobed with 3-9 linear obtuse segments, to 8 cm long. hairless. Flowers small white daisy appearing between June and October.
Fruit type:
Hard dense brown daisy heads.
Seed type:
Brown semi-flat pyramid/rocket-shaped seed to 2.5 mm long and 1.5 mm wide, long hairs along the margin.
Embryo type:
Spatulate fully developed.
Seed collecting:
Pick heads that are maturing, drying off, with brown seeds.
Seed cleaning:
Place the seed-heads in a tray and leave to dry for a week. Then gently rub the heads with a rubber bung to dislodge the seeds. Use a sieve to separate the unwanted material. Store the seeds with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place.
Seed viability:
From one collection, the seed viability was average, at 55%.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA15433 (8.1799 g)2-Nov-2005DJD170
Eyre Peninsula
1-Aug-200755%-18°C
TST8271-Jan-2012-18°C
MJT2071-Jan-2012-18°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
March 200625%8dNA Ambient temperature (21C for 10 months)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 200618%8dNA Cold (dry) stratification (5C for 10 months)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 200614%8dNA Warm (dry) stratification (40C for 10 months)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20065%8dNA Warm (dry) stratification (40C for 1 month)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20062%6dNA Ambient temperature (21C for 12 months)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20061%8dNA Cold (dry) stratification (5C for 6 months)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20061%13dNA Cool (dry) stratification (5C for 12 months)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20060%NANA None
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20060%NANA Cold (dry) stratification (5C for 1 month)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20060%NANA Ambient temperature (21C for 1 month)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20060%NANA Ambient temperature (21C for 3 months)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20060%NANA Ambient temperature (21C for 2 months)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20060%NANA Cold (dry) stratification (5C for 2 months)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20060%NANA Cold (dry) stratification (5C for 3 months)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20060%NANA Warm (dry) stratification (40C for 3 months)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20060%NANA Warm (dry) stratification (40C for 2 months)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20060%NANA Ambient temperature (21C for 6 months)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20060%NANA Warm (dry) stratification (40C for 6 months)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
Incubated under spring/autumn conditions
March 20060%NANA Warm (dry) stratification (40C for 12 months)
50mm glass petri dishes on wettex sponges overlaid with filter paper. Seeds were irrigated twice a week, once with Reverse Osmosis (RO) water and once with 5 g L-1 Mancozeb to control fungal contamination.
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)