Seeds of South Australia
Austrobryonia micrantha (Cucurbitaceae)
Mallee Cucumber
List of species for Austrobryonia
Display more images
Click on an image to enlarge it
Seed collecting:
April to June
Herbarium regions:
Lake Eyre, Gairdner-Torrens, Murray
NRM regions:
South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
Gawler Lakes (GAW03)Gawler
 Rare   (IUCN: RA d(i,ii))
Arcoona Plateau (GAW04) 
 Rare   (IUCN: RA d(i,ii))
Roxby (GAW07) 
 Rare   (IUCN: RA d(i,ii))
Dieri (SSD03)Simpson Strzelecki Dunefields
 Near Threatened
Strzelecki Desert (SSD05) 
 Least Concern
Baltana (STP07)Stony Plains
 Rare   (IUCN: RA d(i,ii))
Sturt Stony Desert (CHC02)Channel Country
 Near Threatened
Diamantina-Eyre (CHC04) 
 Least Concern
Coongie (CHC06) 
 Least Concern
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 Austrobryonia]
Name derivation:
Austrobryonia from the Latin 'austro' meaning southern and Bryonia, a genus in the Family Cuburbitacea and an Ancient Greek name used by Dioscorides; alluding to the genus close relationship to Bryonia but restricted to Australia. Micrantha from the Greek 'micros' meaning small and 'anthos' meaning flower; alluding to the species tiny flowers.
Distribution:
Found in the eastern part of South Australia from Lake Eyre to the Murray regions on clay soil in river flood plains, waterholes and swale in dune fields. Also found in Northern Territory, Queensland, New South Wales and Victoria.
Status:
Native. Common in South Australia. Common in New South wales and Victoria. Uncommon in Northern Territory and Queensland.
Plant description:
Annual forb with a perennial rootstock, prostrate with stems to 1m long. Leaves alternating along the stem to 6 cm long and 45 mm wide, flat, rough, the edges toothed and usually lobed. Male and female flowers usually mixed in few-flowered clusters. Flowers small, pale yellow or greenish yellow, with 5 petals, in groups of 2-5 at the bases of the leaves.  .
Fruit type:
Globular fleshy green fruit ripping to greenish yellow.
Seed type:
Flat, pale brown, ovoid seed to 5mm long and 3mm wide.
Seed collecting:
Collect maturing fruits, those that are large and turning yellowish and with hard seeds inside.
Seed cleaning:
Place the fruit 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 two collections, the seed viability were high, ranging from 90% to 100%.
Seed germination:
Seeds are non-dormant, viable seed should germinate readily.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
2350 (9.35 g)
2350 (9.35 g)
17-May-2006PJA124
Murray
1-Aug-200790%-18°C
BGA6100 (32.38 g)6-May-2007RJB71583B
Lake Eyre
19-Sep-2008100%-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.