Plants of
South Australia
Logania recurva
Loganiaceae
Recurved 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: 2.

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. Recurva, from the Latin 'recurvare', meaning to bend back, referring to its recurved leave margins.

Distribution and status

Endemic to South Australia and found in the southern Mount Lofty Ranges growing in low Eucalyptus obliqua forest with heath understorey. Native. Uncommon in South Australia.
Herbarium region: Southern Lofty
NRM region: Adelaide and Mount Lofty Ranges
AVH map: SA distribution map (external link)

Plant description

Erect shrub to 1 m high; dioecious; stems glabrous to minutely hairy. Leaves linear to narrowly ovate, narrowing at the base, to 40 mm long and 8 mm wide; glabrous to minutely hairy,;margins recurved to revolute. Inflorescence in terminal compact clusters with white unisexual flowers. Flowering between August and October. Fruits are orange-brown ovoid capsule to 6 mm long and 4.5 mm wide. Seeds are shiny black convex seed to 1.3 mm long and 0.8 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 opened 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 three collections, the seed viability was high, ranging from 85% to 95%. Seeds have morpho-physiological dormancy. Germination was enhanced after treatment with fire cues (dry heat and smoke water) and gibberellic acid.

Seeds stored:
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LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA8,100 (1.95 g)303-Dec-2007RJB74289
Southern Lofty
19-Sep-200895%-18°C
BGA217,800 (47.03 g)200+30-Nov-2017TST1388
Southern Lofty
30-Jun-201890%-18°C, -80°C
BGA34,000 (6.44 g)30+30-Nov-2017DJD3699
Southern Lofty
24-Apr-201985%-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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