Seeds of South Australia
Acrotriche depressa (Epacridaceae)
Wiry Ground-berry
List of species for Acrotriche
Display more images
Click on an image to enlarge it
Seed collecting:
October to February
Herbarium regions:
Murray, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Kangaroo Island, South Australian Murray-Darling Basin, South East
IBRA regions
Tintinara (NCP04)Naracoorte Coastal Plain
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)   [edge of range]
Kangaroo Island (KAN01)Kanmantoo
 Least Concern   [KI is stronghold]
Fleurieu (KAN02) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Near Threatened   [on lots of roadsides]
Murray Mallee (MDD02)Murray Darling Depression
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
Murray Lakes and Coorong (MDD03) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
Lowan Mallee (MDD04) 
 Critically Endangered   (IUCN: CR D)   [Incorrect ID]
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 Acrotriche]
Name derivation:
Acrotriche from the Greek 'akron' meaning summit and 'thrix' meaning hair; alluding to the tuft of hairs at the tip of the corolla lobes. Depressa  from Latin meaning to press down; referring to the habit being pressed flat, low to the ground.
Distribution:
Found on Kangaroo Island, southern Mount Lofty Ranges,Murrayland and the South-east in South Australia, growing in sclerophyll forest, mallee scrub and heath on limestone and sandy ironstone. Restricted to South Australia with a small population in Victoria.
Status:
Native. Uncommon in South Australia. Very rare in Victoria.
Plant description:
Low growing, erect shrub with rigid branches to 80 cm high and 60 cm across. Young branches red-brown with older stems grey. Leaves thick, triangular to ovate-lanceolate to 5 mm long and 3 mm wide. Flowers pale-green along spikes to 30 mm long. Flowering between September and December.
Fruit type:
Fleshy, ovoid, dark-purple fruit to 10 mm long and 7 mm wide.
Seed type:
Woody brown ovoid seed to 6 mm long and 3 mm wide.
Embryo type:
Linear underdeveloped.
Seed collecting:
Lift branches carefully to locate the fruits at the base of the plant. Collect berries that are dark-purple and soft with a hard seed inside.
Seed cleaning:
Place the berries in a bucket of water and rub the flesh off with your hands. Drain the water and wash again if required to remove all the flesh. Then spread the wet seeds on some paper towel and leave to dry. 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 average, at 65%.
Seed germination:
This species is generally difficult to germinate, it has morphophysiological dormancy and complex germination requirements.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
2150 (28 g)
2150 (28 g)
30-4027-Oct-2005MKJ91
Southern Lofty
1-Aug-200665%-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.