Seeds of South Australia
Hyalosperma demissum (Compositae)
Moss Sunray
List of species for Hyalosperma
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Seed collecting:
October to December
Herbarium regions:
Gairdner-Torrens, Flinders Ranges, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Bridgewater (NCP01)Naracoorte Coastal Plain
 Near Threatened
Glenelg Plain (NCP02) 
 Rare   (IUCN: RA d(ii))
Lucindale (NCP03) 
 Least Concern
Tintinara (NCP04) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Near Threatened   [fire responsive; 1 pop within a reserve]
Fleurieu (KAN02) 
 Least Concern   [fire responsive]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Least Concern   [fire responsive]
Broughton (FLB02) 
 Least Concern   [Grazing a threat]
Olary Spur (FLB03) 
 Least Concern   [Grazing a threat]
Southern Flinders (FLB04) 
 Least Concern   [Grazing a threat]
Northern Flinders (FLB05) 
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [disturbance, weeds - threats]
Central Flinders (FLB06) 
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [disturbance, weeds - threats]
Southern Yorke (EYB01)Eyre Yorke Block
 Least Concern   [Grazing a threat. Very small, probably more around. Stable.]
St Vincent (EYB02) 
 Near Threatened   [Grazing a threat. Data deficient, should be more records.]
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
Murray Mallee (MDD02)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [edge of range]
Murray Lakes and Coorong (MDD03) 
 Near Threatened   (Probable Decline)   [grazing, weeds - threats]
Lowan Mallee (MDD04) 
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Wimmera (MDD05) 
 Rare   (IUCN: RA d(i,ii))
Braemer (MDD07) 
 Least Concern   [Grazing a threat]
Myall Plains (GAW01)Gawler
 Least Concern
Gawler Volcanics (GAW02) 
 Least Concern
Yellabinna (GVD06)Great Victoria Desert
 Rare   (IUCN: RA d(ii))   [edge of range]
Yalata (NUL03)Nullarbor
 Rare   (IUCN: RA d(ii))   [edge of range]
Barrier Range (BHC01)Broken Hill Complex
 Least Concern   [Grazing a threat]
Barrier Range Outwash (BHC04) 
 Least Concern   [Grazing a threat]
Bimbowrie (BHC05) 
 Least Concern   [Grazing a threat]
Strzelecki Desert (SSD05)Simpson Strzelecki Dunefields
 Rare   (IUCN: RA d(i,ii))   [edge of range]
IBRA regions
DISPLAY ALL
4 of 4 subregionsNaracoorte Coastal PlainLeast Concern
, Near Threatened
, Rare
2 of 2 subregionsKanmantooLeast Concern
, Near Threatened
6 of 6 subregionsFlinders Lofty BlockLeast Concern
, Rare
5 of 5 subregionsEyre Yorke BlockLeast Concern
, Near Threatened
5 of 6 subregionsMurray Darling DepressionLeast Concern
, Near Threatened
, Rare
2 of 8 subregionsGawlerLeast Concern
Yellabinna (GVD06)Great Victoria DesertRare
  (IUCN: RA d(ii))   [edge of range]
Yalata (NUL03)NullarborRare
  (IUCN: RA d(ii))   [edge of range]
3 of 4 subregionsBroken Hill ComplexLeast Concern
Strzelecki Desert (SSD05)Simpson Strzelecki DunefieldsRare
  (IUCN: RA d(i,ii))   [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 Hyalosperma]
Name derivation:
Hyalosperma from the Greek 'hyalos' meaning glass and 'sperma' meaning a seed; refers to the transparent wing of the achenes. Demissum from the Latin 'demissus'  meaning drooping; referring to the species habit.
Distribution:
Found in the southern part of South Australia, growing on shallow soils in a variety of habitats, often on shallow or stony soils. Also found in Western Australia, New South Wales, Victoria and Tasmania.
Status:
Native. Common in South Australia. Rare in Tasmania. Common in the other states.
Plant description:
Annual prostrate herb to 2.5cm tall with glabrous stems. Leaves opposite each other on the stem to alternate, to 5 mm long and 1 mm wide, triangular in cross-section or flattened cylindrical channelled above, hairless or sparsely hairy, with smooth edges and a straight point. Flower-heads globular to cup-shaped to cylindrical, borne singly at the ends of the stems, surrounded by leaves with white or greenish yellow flowers with no petals. flowering between August and October.
Fruit type:
Dense brown head.
Seed type:
Light brown seed to 0.8 mm long and 0.4 mm wide, with a mesh-like surface.
Embryo type:
Spatulate.
Seed collecting:
Collect heads or whole plants that are drying off and turning brown. Each head should have numerous tiny seeds.
Seed cleaning:
Place the heads in a tray for a week to dry. Then rub the heads gently with your hands to dislodge the seeds. Use a fine sieve to separate the seeds from the unwanted material. Be careful as the seeds are very small. 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 90%.
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
17300 (0.83 g)
17300 (0.83 g)
5010-Oct-2007RJB74759
Southern Lofty
19-Sep-200890%-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.