Seeds of South Australia
Lomandra densiflora (Liliaceae)
Pointed Mat-rush
List of species for Lomandra
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Seed collecting:
November to December
Herbarium regions:
Flinders Ranges, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
Fleurieu (KAN02)Kanmantoo
 Least Concern
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Least Concern
Broughton (FLB02) 
 Least Concern   (Probable Decline)
Olary Spur (FLB03) 
 Rare   (IUCN: RA ab)   (Definite Decline)
Southern Flinders (FLB04) 
 Least Concern   (Probable Decline)
Central Flinders (FLB06) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii); D2)   (Probable Decline)   [climate sensitive]
Southern Yorke (EYB01)Eyre Yorke Block
 Rare   (IUCN: RA ab)   (Definite Decline)   [habitat loss]
St Vincent (EYB02) 
 Rare   (IUCN: RA ab)   (Definite Decline)   [habitat loss]
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(i,ii))   (Probable Decline)   [edge of range]
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 Lomandra]
Name derivation:
Lomandra from the Greek 'loma' meaning edge, border or fringe and 'andros' meaning a male; alluding to the circular margin of the anthers in some species. Densiflora from Latin for densely flowered.
Distribution:
Endemic to South Australia and found in the Mount Lofty and Flinders Ranges, in open woodlands.
Status:
Native. Common in South Australia.
Plant description:
Dioecious perennial tussocked herb with bright green rigid leaves to 60 cm long, basal sheaths becoming fibrous. Flower white. Flowering between August and November.
Fruit type:
Ovoid to globular capsule to 6 mm long, smooth, truncate at the summit, sometimes slightly curved.
Seed type:
Yellow-brown, rounded wedge shaped seed to 6 mm long and 3 mm wide.
Embryo type:
Linear underdeveloped.
Seed collecting:
Collect mature fruits, turning brown with a hard seed inside or when they are starting to split.
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 was high, at 100%.
Seed germination:
This species has morphophysiological dormancy and will germinate slowly over weeks to months.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
2400 (30.45 g)
2400 (30.45 g)
50+21-Nov-2006DJD695
Southern Lofty
1-Aug-2007100%-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
Sep-1490%28 d35 d 30% hydrogen peroxide 15 min, water rinse, 1000 mg/L gibberellic acid + 20% smoke water for 24 h;
moist sand;
Incubated under winter conditions
Sep-1480%28 d42 d 30% hydrogen peroxide 15 min, water rinse, 1000 mg/L gibberellic acid for 24 h;
moist sand;
Incubated under winter conditions
Mar-1569%28 d49 d 30% hydrogen peroxide 15 min, water rinse, 10% smoke water 24 h;
moist sand;
12/12;  /  15°C
Sep-1464%35 dNA 30% hydrogen peroxide 15 min, water rinse, dry heat 35°C oven for 6 weeks with 24 h wet cycle once a week, 1000 mg/L gibberellic acid for 24 h;
moist sand;
Incubated under winter conditions
Mar-1432%56 dNA 1000 mg/L gibberellic acid 24 h;
moist sand;
12/12;  /  15°C
Sep-1432%35 dNA 30% hydrogen peroxide 15 min, water rinse, dry heat 35°C oven for 6 weeks, 1000 mg/L gibberellic acid for 24 h;
moist sand;
12/12;  /  15°C
Mar-1528%35 dNA 30% hydrogen peroxide 15 min, water rinse;
moist sand;
12/12;  /  15°C
Mar-1523%28 dNA 30% hydrogen peroxide 15 min, water rinse, 1000 mg/L gibberellic acid 72 h;
moist sand;
12/12;  /  15°C
Sep-1422%42 dNA dry heat 90°C oven 15 min, 30% hydrogen peroxide 15 min, water rinse, 1000 mg/L gibberellic acid + 10% smoke water for 24 h;
moist sand;
Incubated under winter conditions
Mar-1416%56 dNA leached in water 24 h;
moist sand;
12/12;  /  15°C
Mar-1514%28 dNA 30% hydrogen peroxide 15 min, water rinse, 1000 mg/L gibberellic acid 72 h, 10% smoke water 24 h;
moist sand;
12/12;  /  15°C
Sep-148%42 dNA dry heat 90°C oven 15 min, 30% hydrogen peroxide 15 min, 1000 mg/L gibberellic acid 24 h;
moist sand;
Incubated under winter 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)