Seeds of South Australia
Melaleuca xerophila (Myrtaceae)
Inland Honey-myrtle
List of species for Melaleuca
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Seed collecting:
January to December
Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Eyre Peninsula
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands
IBRA regions
Murray Mallee (MDD02)Murray Darling Depression
 Regionally Extinct   [possibly extinct; has been searched for; could be there]
Gawler Volcanics (GAW02)Gawler
 Rare   (IUCN: RA d(i,ii))
Gawler Lakes (GAW03) 
 Least Concern
Arcoona Plateau (GAW04) 
 Least Concern
Kingoonya (GAW05) 
 Least Concern
Torrens (GAW06) 
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Roxby (GAW07) 
 Near Threatened
Commonwealth Hill (GAW08) 
 Near Threatened
Tallaringa (GVD05)Great Victoria Desert
 Rare   (IUCN: RA d(i,ii))   [edge of range; limited habitat]
Yellabinna (GVD06) 
 Rare   (IUCN: RA d(i,ii))
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 Melaleuca]
Name derivation:
Melaleuca from the Greek 'melas' meaning black and 'leucon' meaning white; alluding to the contrasting colours of the bark of the first species described, which is said to have had white branches against a black trunk. Xerophila from the Greek 'xeros' meaning dry and 'phila' meaning loving; alluding to its arid habitat.
Distribution:
Found in the central part of South Australia, growing on calcareous soils in depressions near salt lakes. Also found in Western Australia.
Status:
Native. Common in South Australia. Common in Western Australia.
Plant description:
Large shrub or small spreading tree to 6 m with fibrous or papery bark. Leaves alternately or spirally arranged, narrow elliptic to 5.2 mm long and 1.5 mm wide.Inflorescence are arranged in heads near the ends of the branches, each head usually consisting of one to nine bright yellow, pale lemon-yellow or whitish flowers turning pink with age. Flowering between October and November.
Fruit type:
Grey-brown woody, cup-shaped capsule to 3.5 mm diameter, 
Seed type:
Tiny brown cylindrical to pyrimid-shaped seed to 0.8 mm long and 0.4 mm wide.
Embryo type:
Folded.
Seed collecting:
Collect capsules that are large and hard with closed valves.
Seed cleaning:
Place the capsules in a tray and leave to dry for at least two weeks or until all the valves are open. Then place all the capsules into a bucket with a lid if possible and shake hard to dislodge the seeds from the capsules. Use a sieve to separate the seeds from the capsules. The fine material will contain the seeds and other flowering material. It is very difficult to separate the seeds from this other material as the size, shape and weight are very similar. However the seeds will be a darker brown. 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 average to high, ranging from 80% 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
274063 (8.31 g)
274063
215-Feb-2004PJA 46
North Western
1-Sep-200495%+5°C, -18°C
BGA 
MSB
196185 (52.97 g)
200000 (53 g)
6023-Oct-2004MOL 4560
Gairdner-Torrens
31-Mar-2006100%-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
Jun-0437%24 dNA 20% hydrogen peroxide 10 min, water rinse;
1% agar;
8/16;  /  20°C
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)