Seeds of South Australia
Eucalyptus eremicola ssp. eremicola (Myrtaceae)
Vokes Hill Mallee (Nawa)
List of species for Eucalyptus
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Seed collecting:
January to December
Herbarium regions:
North Western, Nullarbor, Gairdner-Torrens
NRM region:
Alinytjara Wilurara
IBRA regions
Kingoonya (GAW05)Gawler
 Rare   (IUCN: RA d(i,ii))
Maralinga (GVD03)Great Victoria Desert
 Least Concern
Yellabinna (GVD06) 
 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 Eucalyptus]
Name derivation:
Eucalyptus from the Greek 'eu' meaning well and 'calyptos' meaning covered; alluding to the cap or lid which covers the stamens in the bud. Eremicola from the Greek 'eremia' meaning desert and 'cola' meaning dwelling; alluding to the occurrence of the species in the Great Victoria Desert. 
Distribution:
Found in the western part of South Australia, in the Great Victoria Desert, growing on deep red sand overlying limestone in low dunes, flats and swales in open mallee. Also found in Western Australia.
Status:
Native. Common in South Australia. Common in Western Australia.
Plant description:
Multi-stemmed mallee to 9 m high with rough, stringy-fibrous, grey bark on lower stems and smooth, pinkish-grey over cream to white, often powdery bark above. Juvenile leaves elliptical first becoming linear, bull green to slightly bluish-green. Adult leaves to 133 mm long and 21 mm wide, narrow-lanceolate, highly glossy green. Inflorescences in groups of 9-13 in the axils of the leaves. Buds to 8 mm long and 4 mm wide, cylinder-shaped, bud-cap long cone-shaped longer than the base. Flowers white appearing sporadically after rain. This subspecies differ from the other subspecies found in South Australia, E. eremicola ssp. peeneri which has dull to slightly glossy, blue-green adult leaves.
Fruit type:
Round woody fruit to 5.5 mm long and 7 mm wide, disc descending, valves 3 or 4, enclosed below rim.
Seed type:
Grey-brown ovoid seed to 2 mm long and 1.3 mm wide, with fine wrinkled surface texture.
Embryo type:
Folded.
Seed collecting:
Collect mature fruits that are dark and hard (difficult to break with a finger nail), with the valves un-open any time of year.
Seed cleaning:
Leave the fruits in a breathable container in a dry room for one to two weeks. This allows the valves on the fruit to open and release the seeds. Separate the seeds by placing all the materials into a bucket and shaking it to dislodge the seeds. Pass the material through a sieve to separate the unwanted material. The finer material will contain both seeds (soft) and frass (hard) usually distinguishable from each other but can be very similar in shape and colour. With finer sieves, the seeds can be separated from the frass but this is not essential for storage or propagation. 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 one collection, the seed viability was average, at 70%.
Seed germination:
Seeds are non-dormant, viable seed should germinate readily.
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
July 201570%7d7d None
1% water agar
12 hrs dark / 12 hrs light  /  20 °C constant
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)