Plants of
South Australia
Logania crassifolia
Loganiaceae
Coast Logania
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Regional Species Conservation Assessments per IBRA subregion.
Least concern
Near threatened
Rare
Vulnerable
Endangered
Critically endangered
Extinct
Data deficient
Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
Marree
Mount Gambier
Oodnadatta
Renmark
Wudinna
Keith
Yunta
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Botanical art

Kath Alcock paintings: 3.

Etymology

Logania,,named after James Logan (1674-1751), an Irish born botanist who emigrated to North America, became Governor of Pennsylvania and wrote a book on the sexuality of plants. Crassifolia, from the Latin 'crassus,' meaning thick and 'folium', meaning a leaf, referring to its thick ovoid leathery leaves.

Distribution and status

Endemic to South Australia and found on the southern Eyre and Yorke Peninsulas, Kangaroo Island and the southern Mount Lofty Range, growing along the coast, in coastal low open to closed heath, among rocks near beach, or sandy soils of consolidated dunes overlying limestone. Native. Common in South Australia.
Herbarium regions: Eyre Peninsula, Yorke Peninsula, Southern Lofty, Kangaroo Island
NRM regions: Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, Northern and Yorke
AVH map: SA distribution map (external link)

Plant description

Prostrate shrub to 30 cm high and 100 cm wide; dioecious with scabrous stems. Leaves broadly obovate or broadly elliptic, to 30 mm long and 30 mm wide; glabrous to minutely papillose; flat, margins thickened with scabrous stalk to 3 mm long. Inflorescence compact terminal clusters with white unisexual flowers. Flowering between August and October. Fruits are grey-brown ovoid capsule to 8 mm long and 6.5 mm wide. Seeds are shiny black barbell-shaped convex seed to 1.5 mm long and 1 mm wide, with a reticulate surface. Seed embryo type is linear, fully-developed.

Seed collection and propagation

Collect seeds between October and December. Collect maturing capsules that are fat, turning brown in colour, have not open and contain hard black seeds. Place the capsules in a tray and leave to dry for one to two weeks for it to split. Rub the capsules gently with a rubber bung to dislodge the seeds. 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. From one collection, the seed viability was high, at 100%.

Seeds stored:
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LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
12,100 (6.92 g)
12,100 (6.92 g)
50+30-Nov-2006TST114
Yorke Peninsula
1-Aug-2007100%-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.