Seeds of South Australia
Cheiranthera alternifolia (Pittosporaceae)
List of species for Cheiranthera
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Seed collecting:
December to January
Herbarium regions:
Flinders Ranges, 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
Lucindale (NCP03)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(i,ii))
Tintinara (NCP04) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Endangered   (IUCN: EN D)   [highly restricted; only known from 2 locations; very small numbers]
Fleurieu (KAN02) 
 Near Threatened
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Near Threatened   [well collected]
Broughton (FLB02) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
Southern Flinders (FLB04) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Southern Yorke (EYB01)Eyre Yorke Block
 Rare   (IUCN: RA d(ii))   (Probable Decline)
St Vincent (EYB02) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Near Threatened
Murray Mallee (MDD02)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [edge of range]
Murray Lakes and Coorong (MDD03) 
 Rare   (IUCN: RA d(ii))
Wimmera (MDD05) 
 Vulnerable   (IUCN: VU D2)   [edge of range]
IBRA regions
2 of 4 subregionsNaracoorte Coastal PlainLeast Concern
, Rare
2 of 2 subregionsKanmantooNear Threatened
, Endangered
3 of 6 subregionsFlinders Lofty BlockNear Threatened
, Rare
, Vulnerable
5 of 5 subregionsEyre Yorke BlockLeast Concern
, Near Threatened
, Rare
, Vulnerable
3 of 6 subregionsMurray Darling DepressionRare
, Vulnerable
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 Cheiranthera]
Name derivation:
Cheiranthera from the Greek 'cheir' meaning hand and 'anthera' meaning anther, referring to the five anthers resembling fingers. Alternifolia from Latin meaning alternate leaves.
Found in  southern  South Australia, from the southern Eyre Peninsula to the lower South-east. It was also known in Victoria from 2 collections, most recent being from 1890. It is presumed extinct in that State.
Native. Common in South Australia. 
Plant description:
A weak perennial shrub to 50 cm tall and usually growing through other plants. It has long linear leaves and large dark blue-purple flowers at the tip. The yellow anthers are arranged like fingers on a hand. Flowering between September and November.
Fruit type:
Long brown capsule to 18 mm long, with numerous seeds inside.
Seed type:
Shiny small, red-brown reniform seeds to 2.5 mm long and 1.5 mm wide.
Seed collecting:
Collect capsules as they start to dry and turn brown. Capsules may be collected green if the seeds are hard and red-brown.
Seed cleaning:
Place the capsules in a tray and cover with paper towels to prevent the seeds popping out and leave to dry for a week. Then carefully rub the dried capsules by hand to prevent damaging the seeds as the seedcoat is thin. Use a sieve to remove 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:
From one collection, the seed viability was high, at 100%.
Seeds stored:
LocationNo. of seeds
(weight grams)
of plants
Collection number
Collection location
% ViabilityStorage
23400 (16.38 g)
7000 (4.86 g)
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
Mar-0652%56 d126 d
filter paper over moist sponge;
Incubated under spring/autumn conditions
Mar-0648%56 dNA
filter paper over moist sponge;
/ 4 weeks summer, 4 weeks spring/autumn, 4 weeks winter, 4 weeks spring/autumn, 4 weeks summer.
filter paper over moist sponge;
Incubated under spring/autumn conditions
Jun-0636%NANA dry heat 80°C oven 1 h;
filter paper over moist sponge;
Incubated under spring/autumn conditions
Jun-0631%NANA dry heat 80°C oven 10 min;
filter paper over moist sponge;
Incubated under spring/autumn conditions
Mar-0614%42 dNA
filter paper over moist sponge;
Incubated under winter conditions
Mar-066%122 dNA
filter paper over moist sponge;
/ 4 weeks winter, 4 weeks spring/autumn, 4 weeks summer, 4 weeks spring/autumn, 4 weeks winter.
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)