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 and pink tinged flowers. Flowering in spring and summer.
Fruit type:
Pale brown cone-shaped fruit with fan-like wings around the tip.
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.