Seeds of South Australia
Baeckea tuberculata (Myrtaceae)
Warty Baeckea
List of species for Baeckea
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Seed collecting:
October to December
Herbarium region:
North Western
NRM region:
Alinytjara Wilurara
IBRA regions
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA d(i,ii))   [undercollected]
Tallaringa (GVD05) 
 Near Threatened   [found in deep sands; not dominant, in low #'s]
Everard Block (CER03)Central Ranges
 Rare   (IUCN: RA d(i,ii))   [edge of range; limited habitat]
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 Baeckea]
Name derivation:
Baeckea named after Dr Abraham Baeck (1713-1795), a Swedish naturalist and physician. Tuberculata meaning to have bumps; referring to the tubercles on branches and leaves of the species.
Distribution:
Endemic to South Australia and found only in a few areas in the north-west corner, on sand dunes.
Status:
Native. Uncommon in South Australia.
Plant description:
Woody shrub with prominent tuberculate oil glands on the branchlets, leaves and hypanthium. Branchlets white. Leaves appressed and not overlapping to slightly spreading and overlapping the next pair for half their length, or rarely crowded, linear to oblong, to 3.1mm long, semiterete. Flowers solitary in leaf axils, at least 7mm across with a woody base densely covered in tuberculate oil glands.
Fruit type:
Woody brown capsule with 2-3 valves.
Seed type:
Angular, brown seed to 2mm long and 1mm wide covered in a fine reticulate.
Seed collecting:
Collect mature capsules, those that are turning brown, hard with non-open valves.
Seed cleaning:
Place the capsules in a tray and leave to dry for a week or two. 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 and frass usually distinguishable from each other. 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.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
77000 (53.8 g)
<1500 (27.1 g)
31-Oct-2013DJD2795
North Western
Mar-2015 (Xray 4%)-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.