Seeds of South Australia
Eucalyptus alatissima (Myrtaceae)
Wing-fruited Mallee
List of species for Eucalyptus
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Seed collecting:
July to May
Herbarium region:
North Western
NRM region:
Alinytjara Wilurara
IBRA region
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA (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 Eucalyptus]
Name derivation:
Eucalyptus from the Greek 'eu' well and 'calyptos' covered; alluding to the cap or lid which covers the stamens in the bud. Alatissima from the Latin 'alatus' meaning winged and 'issimus' meaning very much so; referring to the prominetly winged buds and fruits.
Distribution:
Restricted to the central western part of South Australia, growing on gravelly red sands and loams between sand dunes in open mallee. Also found in Western Australia.
Status:
Native. Rare in South Australia. Rare in Western Australia.
Plant description:
Multi-stemmed or occasionally single-stemmed trees to 8 m high with smooth, tan to cream bark on the upper parts but rough and greyish below. Juvenile leaves opposite for a few pairs then becoming disjunct, petiolate, novate to broad-lanceolate, dull, blue-green. Adult leaves ovate to lanceolate, green to grey-green, dull, to 100 mm long and 20 mm wide. Flowers in umbels of 3 in the axils of the leaves. Buds on pedicels usually to 20 mm long, globose to ovoid, with 5-8 prominent longitudinal winged, reddish, to 35 mm long and 20 mm wide. Bud-cap long-rostrate, as long as or longer than the hemispherical bud-base. Flowers pink to red, rarely yellow. Flowers in autumn and spring.
Fruit type:
Large woody fruit to 20 mm long and 45 mm wide, with prominently longitudinally winged.
Seed type:
Dark grey, pyramidal-shaped seed to 4 mm long and 4 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 high, at 85%.
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
6000 (11.73 g)
6000 (11.73 g)
821-May-2014DJD2954
North Western
24-Mar-201585%-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.