Seeds of South Australia
Hibbertia virgata (Dilleniaceae)
Twiggy Guinea-flower
List of species for Hibbertia
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Seed collecting:
October to January
Herbarium regions:
Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Bridgewater (NCP01)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Lucindale (NCP03) 
 Least Concern   [sandy soils]
Tintinara (NCP04) 
 Least Concern   [sandy soils]
Kangaroo Island (KAN01)Kanmantoo
 Least Concern
Fleurieu (KAN02) 
 Near Threatened   [some taxonomic issues - has been split; likes sandy soils; weeds a threat]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Near Threatened   [some taxonomic issues - has been split; likes sandy soils; weeds a threat]
Broughton (FLB02) 
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)
Southern Yorke (EYB01)Eyre Yorke Block
 Least Concern   [Sandy areas]
St Vincent (EYB02) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Definite Decline)
Eyre Hills (EYB03) 
 Least Concern   [to be named H. conduplicata]
Talia (EYB04) 
 Least Concern   [to be named H. conduplicata]
Eyre Mallee (EYB05) 
 Least Concern   [to be named H. conduplicata]
South Olary Plain (MDD01)Murray Darling Depression
 Rare   (IUCN: RA d(ii))
Murray Mallee (MDD02) 
 Least Concern
Murray Lakes and Coorong (MDD03) 
 Least Concern   [sandy soils]
Lowan Mallee (MDD04) 
 Least Concern
Wimmera (MDD05) 
 Rare   (IUCN: RA d(i,ii))   [edge of range; lack of habitat]
Murray Scroll Belt (RIV06)Riverina
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(ii))   [to be named H. conduplicata. Edge of range]
Gawler Volcanics (GAW02) 
 Rare   (IUCN: RA d(ii))   [to be named H. conduplicata. Edge of range]
Yellabinna (GVD06)Great Victoria Desert
 Rare   (IUCN: RA d(ii))   [to be named H. conduplicata. Edge of range]
Yalata (NUL03)Nullarbor
 Rare   (IUCN: RA d(ii))   [to be named H. conduplicata. Edge of range]
IBRA regions
DISPLAY ALL
3 of 4 subregionsNaracoorte Coastal PlainLeast Concern
, Rare
2 of 2 subregionsKanmantooLeast Concern
, Near Threatened
2 of 6 subregionsFlinders Lofty BlockNear Threatened
, Rare
5 of 5 subregionsEyre Yorke BlockLeast Concern
, Vulnerable
5 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
Murray Scroll Belt (RIV06)RiverinaVulnerable
  (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
2 of 8 subregionsGawlerRare
Yellabinna (GVD06)Great Victoria DesertRare
  (IUCN: RA d(ii))   [to be named H. conduplicata. Edge of range]
Yalata (NUL03)NullarborRare
  (IUCN: RA d(ii))   [to be named H. conduplicata. Edge of range]
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 Hibbertia]
Name derivation:
Hibbertia named after George Hibbert (1757-1837), a London merchant who maintained a private botanic garden at Chelsea. Virgata from the Latin 'virga' meaning rod, twiggy; referring to its twiggy habit.
Distribution:
Found in the southern part of South Australia, growing on sandy soils in open woodlands and heaths in coastal and inland areas. Also found in New South Wales, Victoria and Tasmania.
Status:
Native. Common in South Australia. Uncommon in New South Wales and Tasmania. Common in Victoria.
Plant description:
Small erect shrub to 150 cm high. Leaves linear-oblanceolate to linear, to 30 mm long and 2 mm wide, glabrous or covered by curly hairs. Flowers yellow to 8 mm long, axillary or terminal on short shoots. Flowering between July and September.
Fruit type:
Brown ellipsoid capsule with 3 carpels and 2 ovules in each, glabrous.
Seed type:
Brown, globular seed to 2 mm diameter.
Seed collecting:
Collect mature capsules, those that are turning a pale straw colour and contain brown seeds.
Seed cleaning:
Place the capsules in a tray and leave to dry for one to two weeks. Then rub the capsules gently by hand 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:
This genus tend to have low seed viability.
Seed germination:
This species has morphophysiological dormancy and can be difficult to germinate.
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
March 201428%48dNA Leached in Gibberellic Acid (500mg/L) for 48 hours
70mm glass petri dishes on 1% w/v agar
Incubated under spring/autumn conditions
March 20140%NANA None
70mm glass petri dishes on 1% w/v 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)