Seeds of South Australia
Calytrix gypsophila (Myrtaceae)
Gypsum Fringe-myrtle
List of species for Calytrix
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Seed collecting:
November to January
Herbarium regions:
North Western, Nullarbor, Gairdner-Torrens, Eyre Peninsula
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands
IBRA regions
Gawler Lakes (GAW03)Gawler
 Rare   (IUCN: RA d(ii))   [habitat specific, likes gypsum]
Kingoonya (GAW05) 
 Rare   (IUCN: RA d(ii))   [habitat specific, likes gypsum]
Roxby (GAW07) 
 Data Deficient   [found around gypseous soils/lagoons; lack of data & knowledge of this spp]
Commonwealth Hill (GAW08) 
 Least Concern   [found around gypseous soils/lagoons]
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA d(ii))   [habitat specific, likes gypsum]
Tallaringa (GVD05) 
 Data Deficient   [found around gypseous soils/lagoons; lack of data & knowledge of this spp]
Yellabinna (GVD06) 
 Rare   (IUCN: RA d(ii))   [habitat specific, likes gypsum]
Breakaways (STP01)Stony Plains
 Data Deficient   [found around gypseous soils/lagoons; lack of data & knowledge of this spp; 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 Calytrix]
Name derivation:
Calytrix from the Greek 'kalyx' meaning calyx and 'thrix' meaning hair, referring to the awns on the sepals. Gypsophila from the Greek 'gupsos' meaning chalk or gypsum and 'philos' meaning loving, alluding to the habitat of the species on gypsum soil.
Distribution:
Scattered in the central and western parts of South Australia growing around salt lakes & claypans and samphires flats on gypseous and loamy sand. Also found in Western Australia.
Status:
Native. Uncommon in South Australia. Rare in Western Australia.
Plant description:
Shrub to 2 m high with white flowers. Flowering between July and September. May respond opportunistically to rainfall.
Fruit type:
Long cylindrical fruit to 15 mm long and 2 mm wide, with fan-shaped wings and awns at one end.
Seed type:
A small ovoid seed sits in the long section of the fruit.
Embryo type:
Spatulate fully developed.
Seed collecting:
Collect heads by hand when they are brown and slightly fat at the base. This should contain small hard seed.
Seed cleaning:
No cleaning is required if only the fruits were collected. If collected with other material, use a sieve to separate the unwanted material. 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:
Seed set and seed viability can be low. From one collection, the seed viability was low, at 20%.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
3100 (8.33 g)
3100 (8.33 g)
50+4-Dec-2005DJD300
Gairdner-Torrens
7-Aug-200620%-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.