Seeds of South Australia
Montia australasica (Portulacaceae)
White purslane
List of species for Montia
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Seed collecting:
November to May
Herbarium regions:
Northern Lofty, Murray, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Kangaroo Island, Northern and Yorke, South Australian Murray-Darling Basin, South East
IBRA regions
Mount Gambier (SVP02)Southern Volcanic Plain
 Rare   (IUCN: RA d(i,ii))   [likes regular flooding]
Glenelg Plain (NCP02)Naracoorte Coastal Plain
 Near Threatened   [lots around Marshes]
Lucindale (NCP03) 
 Near Threatened   (Probable Decline)   [salinity & weeds a threat]
Kangaroo Island (KAN01)Kanmantoo
 Vulnerable   (IUCN: VU D2)   [In Kelly Hill CP]
Fleurieu (KAN02) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [red-gum habitat]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [tolerates some degraded habitat; likes red-gum habitat]
Broughton (FLB02) 
 Critically Endangered   (IUCN: CR D)   (Definite Decline)   [needs floods]
Murray Mallee (MDD02)Murray Darling Depression
 Endangered   (IUCN: EN B2ab(i,ii,iii))   (Probable Decline)   [odd record; highly restricted]
Murray Lakes and Coorong (MDD03) 
 Vulnerable   (IUCN: VU D2)   [likes regular flooding]
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 Montia]
Name derivation:
Montia named after Guiseppe Monti (1682-1760), an Italian chemist and botanist, Professor of Botany and Director of the Bologna botanic garden. Australasica means of or from Australasia; referring to the species distribution. 
Found on Kangaroo Island, Mount Lofty Ranges, along the lower Murray River and the lower South-east in South Australia, in moist areas along stream margins and wetlands. Also found in Western Australia, New South Wales, Victoria, Tasmania and New Zealand.
Native. Uncommon in South Australia. Rare in Western Australia. Common in the other states.
Plant description:
Prostrate perennial herbs with rhizomatous stems, rooting at the nodes, often carpeting to 3 cm high in terrestrial situations, lax when aquatic. Terrestrial forms with stems often pinkish, sometimes the lower internodes tuberous in lowlands, leaves alternate, to 4 cm long and 3 mm wide, bright green or bluish, aquatic forms with leaves to 12 cm long and 5 mm wide. Flowers white or pale pink. Flowering between November and March.
Fruit type:
Pale brown subglobose capsule to 3.5 mm long, shorter than the sepals
Seed type:
Black ovoid seed to 1.9 mm long and 1.5 mm wide, smooth and shiny.
Embryo type:
Seed collecting:
Collect mature capsules, those that are turning yellow or pale brown colour and contain black seeds.
Seed cleaning:
Place the capsules in a tray and leave to dry for one to two weeks. Then rub the capsules gently by hand to dislodge the seeds. Use a sieve to separate 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 two collections, the seed viability were low to high, ranging from 25% to 100%. This may be due to the level of cleaning.
Seeds stored:
LocationNo. of seeds
(weight grams)
of plants
Collection number
Collection location
% ViabilityStorage
BGA820 (0.655 g)100+5-Dec-2012DJD2605
South Eastern
BGA830 (0.665 g)200+18-Nov-2013DJD2272
South Eastern
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-1440%14 dNA leached in water 48 h; 500 mg/L gibberellic acid 48 h;
1% agar;
Incubated under spring/autumn conditions
May-1326%21 dNA 250 mg/L gibberellic acid 48 h;
1% agar;
16/8;  /  10°C
Jul-148%31 dNA leached in water 48 h;
1% agar;
Incubated under spring/autumn conditions
1% agar;
16/8;  /  10°C
1% agar;
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)