Seeds of South Australia
Eucalyptus glomerosa (Myrtaceae)
Jinjulu
List of species for Eucalyptus
Click on an image to enlarge it
Seed collecting:
January to December
Herbarium region:
North Western
NRM region:
Alinytjara Wilurara
IBRA regions
Maralinga (GVD03)Great Victoria Desert
 Least Concern
Kintore (GVD04) 
 Least Concern
Mann-Musgrave Block (CER01)Central Ranges
 Rare   (IUCN: RA d(i,ii))
Watarru (CER02) 
 Least Concern
Everard Block (CER03) 
 Rare   (IUCN: RA d(i,ii))   [eastern 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 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. Glomerosa from the Latin 'glomerosus' meaning globular; referring to the spherical flower buds. Jinjulu is then Aboriginal name for the species.
Distribution:
Found in the north-west corner of South Australia, growing on red sands in dune field and sandplains. Also found in Western Australia.
Status:
Native. Common in South Australia. Common in Western Australia.
Plant description:
Multi-stemmed mallee to 7 m tall with rough, fribous to flaky, yellow-brown to dark grey bark below and smooth, pale pink to coppery bark above. Juvenile leaves ovate , waxy, dull, blue-green. Adult leaves to 90 mm long and 18 mm wide, elliptical to lanceolate, dull, grey-green, new growth waxy. Flowers in groups of 7-9, held erect. Buds to 5 mm long and 5 mm wide, globular, smooth, bud-cap round, about the smae length as the base. Flowers cream appearing sporadically depending on rainfall.
Fruit type:
Globular fruit to 11 mm long and 15 mm wide, smooth, disc brown and ascending, valves 3-5 exserted above the rim.
Seed type:
Orange-brown narrowly pyramid-shaped seed to 5 mm long and 1 mm wide.
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 75%.
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
6357
6357
55-Dec-2003PJA 59
North Western
1-Sep-200490%-18°C
BGA7400 (8.99 g)25+20-May-2014TST1198
North Western
24-Mar-201575%-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
October 200667%14d49d Stored at -18°C (1year).
Wet filter paper placed over wettex sponge. Irrigated with RO water
Incubated under winter conditions
August 201466%14d14d None
1% w/v agar plates
12/12 dark/light  /  20 °C Constant
June 200464%10d35d Seed sterilised with 20% Hydrogen Peroxide with 2 drops of Tween (10min). Rinsed in sterile water.
0.8% w/v agar plates
16/8 dark/light  /  20°C Constant
October 200619%28dNA Stored at -18°C (1year).
Wet filter paper placed over wettex sponge. Irrigated with RO water
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)