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.
Distribution:
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.
Status:
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)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
2990
2990
>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)