Seeds of South Australia
Billardiera uniflora (Pittosporaceae)
Single-flower Apple-berry
List of species for Billardiera
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Seed collecting:
March to May
Herbarium regions:
Eyre Peninsula, Southern Lofty, Kangaroo Island
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island
IBRA regions
Kangaroo Island (KAN01)Kanmantoo
 Least Concern
Fleurieu (KAN02) 
 Rare   (IUCN: RA d(ii))   [well protected in reserves]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Vulnerable   (IUCN: VU D2)   (Probable Decline)   [restricted range]
Eyre Hills (EYB03)Eyre Yorke Block
 Vulnerable   (IUCN: VU B2ab(i,ii,iii); D1)   (Probable Decline)
Talia (EYB04) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii); D1)   (Probable Decline)
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 Billardiera]
Name derivation:
Billardiera named after Jacques Julien de La Billardiere (1755-1834), a 19th century French botanist who visited Western Australia and Tasmania with D'Entrecasteaux expedition and named many new plant species. Uniflora from the Latin 'unus' meaning one and 'floris' meaning flower.
Distribution:
Endemic to South Australia and found at the bottom of Eyre Penionsula, Kangaroo Island and Southern Mount Lofty Ranges.
Status:
Native. Uncommon in South Australia.
Plant description:
Twiner or creeper perennial shrub to 1 m tall. Leaves alternate, linear to narrow-lanceolate, entire or crenate, acute to 50 mm long and 9 mm wide, glabrous to sparsely pubescent, margins closely revolute. Flowers cream or white, solitary or occasionally 2 bell-shaped appearing between September and November.
Fruit type:
Cylindrical berry to 40 mm long and 13 mm wide, green and hard when immature and soft when ripe.
Seed type:
Brown flat reniform seeds to 2 mm long and 2 mm wide, covered in wrinkles.
Embryo type:
Linear underdeveloped.
Seed collecting:
Pick mature fruits by hand, those that are soft or have dark brown seeds inside.
Seed cleaning:
Clean ripe fruits as soon as possible as it will go hard if left to dry too long. Rub the fruits in water with your hands to dislodge the seeds from the fruit. Pour the mixture into a sieve to separate the seeds from the flesh. Place the wet seeds in a tray lined with paper and leave to dry for 1 to 2 days. 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 high, at 100%.
Seed germination:
This species has physiological dormancy that need to be overcome for the seed to germinate.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
1840 (3.09 g)
1840 (3.09 g)
62-May-2007DJD802
Southern Lofty
1-Aug-2007100%+5°C, -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.