Seeds of South Australia
Calytrix glaberrima (Myrtaceae)
Smooth Fringe-myrtle
List of species for Calytrix
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Seed collecting:
December to March
Herbarium regions:
Southern Lofty, Kangaroo Island
NRM regions:
Adelaide and Mount Lofty Ranges, Kangaroo Island
IBRA regions
Kangaroo Island (KAN01)Kanmantoo
 Least Concern   [widespread and stable]
Fleurieu (KAN02) 
 Rare   (IUCN: RA d(ii))
Murray Mallee (MDD02)Murray Darling Depression
 Endangered   (IUCN: EN B2ab(i,ii,iii))   (Definite Decline)   [loss of habitat; needs good rain; 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. Glaberrima means most glabrous; referring to the species being devoid of hairs.
Distribution:
Endemic to South Australia and found on Kangaroo Island and the southern Mount Lofty Ranges, growing in heath.
Status:
Native. Uncommon in South Australia.
Plant description:
Small woody shrub to 1 m tall with tiny, smooth leaves, to 5 mm long and 1.5 mm wide. Inflorescence in small leafy spike, with white with pink tinged flowers. Flowering in spring and summer.
Fruit type:
Pale brown cone-shaped fruit with fan-like wings around the top.
Seed type:
A small ovoid seed sits in the cone 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 15%.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
48000 (19.2 g)
9500 (5.56 g)
50+18-Jan-2006DJD345
Southern Lofty
7-Aug-200615%-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.