Plants of
South Australia
Logania scabrella
Loganiaceae
Rough 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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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. Scabrella, from the Latin 'scaber, meaning rough to the touch, scurfy, referring to the slightly rough covering of hairs (by touch) of the branchlets

Distribution and status

Endemic to South Australia and found only on the western end of Kangaroo Island growing in Eucalyptus remota tall-shrubland over a heath understorey on sandy loams to clayey soils, overlying laterite. Native. Rare in South Australia.
Herbarium region: Kangaroo Island
NRM region: Kangaroo Island
AVH map: SA distribution map (external link)

Plant description

Erect shrub to 1 m high, dioecious; branches sub-terete, often with two lateral ridges, densely and minutely hairy. Leaves ovate to narrow- ovate to 18 mm long and 8 mm wide; base rounded to slightly cuneate; margin slightly recurved, often with a few hairs near base; apex obtuse; lower surface glabrous. Inflorescence a terminal cluster with tiny white unisexual flowers. Flowering between August and October. Fruits are orange-brown ovoid capsule to 5 mm long and 3.5 mm wide. Seeds are shiny black long convex seed to 1.5 mm long and 0.7 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 orange-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 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
9,000 (1.7 g)
10,000 (1.8 g)
80+18-Nov-2015TST1260
Kangaroo Island
2-May-2017100%+5°C, -18°C, -80°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.
Germination table:
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