Seeds of South Australia
Cheiranthera alternifolia (Pittosporaceae)
Clustered Finger-flower
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
SUMMARY
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
DISPLAY ALL
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.
Distribution:
Found in the southern part of 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 presumed extinct in this State.
Status:
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 blue-purple flowers at the tip. The yellow anthers are arranged like fingers on your 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)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
23400 (16.38 g)
7000 (4.86 g)
30-Dec-2005PJA100
Murray
20-Jul-2009100%-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
March 200652%56d126d None.
Wet filter paper placed over wettex sponge.
Incubated under spring/autumn conditions
March 200648%56dNA None.
Wet filter paper placed over wettex sponge.
14 hours (4wks); 12 hours (4wks); 10 hours (4wks); 12 hours (4wks); 14 hours (4wks).  /  4 wks at 15°C (10hrs); 30°C (14hrs) followed by 4wks at 10°C (12hrs); 22°C (12hrs) followed by 4wks at 5°C (4hrs); 15°C (20hrs) followed by 4wks at 10°C (12hrs); 22°C (12hrs) followed by 4wks at 15°C (10hrs); 30°C (14hrs).
June 200639%NANA None.
Wet filter paper placed over wettex sponge.
Incubated under spring/autumn conditions
June 200636%NANA 1 hour in 80°C oven.
Wet filter paper placed over wettex sponge.
Incubated under spring/autumn conditions
June 200631%NANA 10 mins in 80°C oven.
Wet filter paper placed over wettex sponge.
Incubated under spring/autumn conditions
March 200614%42dNA None.
Wet filter paper placed over wettex sponge.
Incubated under winter conditions
March 20066%122dNA None.
Wet filter paper placed over wettex sponge.
10 hours (4wks); 12 hours (4wks); 14 hours (4wks); 12 hours (4wks); 10 hours (4wks).  /  4 wks at 5°C (4hrs); 15°C (20hrs) followed by 4wks at 10°C (12hrs); 22°C (12hrs) followed by 4wks at 15°C (10hrs); 30°C (14hrs) followed by 4wks at 10°C (12hrs); 22°C (12hrs) followed by 4wks at 5°C (4hrs); 15°C (20hrs).
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)