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.