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. 
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.
Status:
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:
Peripheral.
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)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA820 (0.655 g)100+5-Dec-2012DJD2605
South Eastern
27-Feb-2014100%-18°C
BGA830 (0.665 g)200+18-Nov-2013DJD2272
South Eastern
24-Mar-201525%-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
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
May-130%NANA
1% agar;
16/8;  /  10°C
Jul-140%NANA
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)