Seeds of South Australia
Billardiera sp. Yorke Peninsula (P.C.Heyligers 80164) (Pittosporaceae)
Lehmann's Apple-berry
List of species for Billardiera
Click on an image to enlarge it
Seed collecting:
January to March
Herbarium region:
Yorke Peninsula
NRM region:
Northern and Yorke
IBRA region
Southern Yorke (EYB01)Eyre Yorke Block
 Endangered   (IUCN: EN B2ab(i,ii,iii))   (Probable Decline)
Eyre Hills (EYB03) 
 Endangered   (IUCN: EN D)
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. Manual script name refer to where the species was first collected.
Distribution:
Endemic to South Australia and found only in a few areas on Yorke Peninsula in dunes by the coast.
Status:
Native. Very rare in South Australia.
Plant description:
Climbing perennial shrub with leaves are green, lanceolate leaves.  Flowers are yellow, bell-shaped, appearing between August and December.
Fruit type:
A cylindrical berry, green and hard when immature and soft when ripe.
Seed type:
Dark brown to red flat reniform seeds about 2.5 mm long and 2 mm wide, covered with 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 three collections, the seed viability were average to high, ranging from 75% to 95%.
Seed germination:
This species has physiological dormancy that need to be overcome for the seed to germinate.