Seeds of South Australia
Pittosporum angustifolium (Pittosporaceae)
Native apricot
List of species for Pittosporum
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Seed collecting:
September to February
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
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Pittosporum]
Name derivation:
Pittosporum from the Greek 'pitta' meaning pitch and 'spora 'meaning a seed; referring to the sticky covering of the seed. Angustifolium from the Latin 'agustus' meaning narrow and 'folium' meaning leaf.
Found in all parts of South Australia except for the bottom of the South-east. Also found in Western Australia, Northern Territory, Queensland, New South Wales and Victoria.
Native. Common in South Australia. Common in the other states.
Plant description:
Shrub or a tree to 10 m tall with long green alternating leaves, drooping down on the branches. Flowers unisexual (possibly sometimes bisexual), sweet-scented, males mostly in axillary clusters of up to 6, females usually solitary in axils, yellow with curved petals.  Flowering between August and November.
Fruit type:
Orange ovoid capsules that split into two and containing numerous seeds.
Seed type:
Red sticky seeds to 6 mm long and 4 mm wide.
Embryo type:
Linear underdeveloped.
Seed collecting:
Collect by hand fruits that are orange in colour, opened or not opened.
Seed cleaning:
Place the fruit in a tray and leave to dry for at least two weeks. The fruit will split and open as it dries. Once the fruits split, use your fingers or a small spoon to extract the seeds. 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%.
Seeds stored:
LocationNo. of seeds
(weight grams)
of plants
Collection number
Collection location
% ViabilityStorage
>10011-May-2004MKJ 30
Southern Lofty
1-Sep-2004100%+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.
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
Jul-0482%26 d46 d leached in water 18 h, 20% hydrogen peroxide 10 min, water rinse;
filter paper over moist sponge;
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)