Seeds of South Australia
Leptospermum myrsinoides (Myrtaceae)
Heath Tea-tree
List of species for Leptospermum
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Seed collecting:
January to December
Herbarium regions:
Northern Lofty, Murray, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Northern and Yorke, South Australian Murray-Darling Basin, South East
IBRA regions
Mount Gambier (SVP02)Southern Volcanic Plain
 Least Concern
Bridgewater (NCP01)Naracoorte Coastal Plain
 Least Concern
Glenelg Plain (NCP02) 
 Least Concern
Lucindale (NCP03) 
 Least Concern
Tintinara (NCP04) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Least Concern   [widespread]
Fleurieu (KAN02) 
 Least Concern
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Least Concern
Murray Mallee (MDD02)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [edge of range]
Murray Lakes and Coorong (MDD03) 
 Least Concern
Lowan Mallee (MDD04) 
 Least Concern
Wimmera (MDD05) 
 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 Leptospermum]
Name derivation:
Leptospermum from the Greek 'leptos' meaning fine, thin or slender and 'sperma' meaning seed; referring to the narrow seeds of the type species. Myrsinoides means resembling the genus Myrsine (Greek name for myrtle).
Distribution:
Found on Kangaroo Island, Mount Lofty Ranges and the South-east in South Australia, growing in mallee-heath, heathy woodland and near-coastal heathland on sandy or swampy soils. Also found in New South Wales and Victoria.
Status:
Native. Common in South Australia. Rare in New South Wales. Common in Victoria.
Plant description:
Shrub to 2 m high with smooth bark on young stems. Leaves narrowly obovate to oblanceolate, to 10 mm long and 4 mm wide, glabrous. Inflorescence borne at the ends of short leafy side-shoots with white flowers to 15 mm wide. Flowering between October and November. 
Fruit type:
Silky woody fruit to 6 mm wide, deciduous.
Seed type:
Brown wedge-shaped seed 2 mm long and 0.7 mm wide, with a reticulate surface pattern.
Embryo type:
Folded.
Seed collecting:
Collect mature capsules, those that are turning brown, hard with non-open valves. Mature fruits can remain on the plant unopened for sometime but will eventually shed.
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.
Seed viability:
From one collection, the seed viability was low, at 40%.
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
4000 (4.96 g)
4000 (4.96 g)
50+5-Dec-2005DJD338
Southern Lofty
8-Aug-200640%-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.