Seeds of South Australia
Orianthera nuda (Loganiaceae)
Bare Logania
List of species for Orianthera
Display more images
Click on an image to enlarge it
Seed collecting:
December to March
Herbarium regions:
Nullarbor, Gairdner-Torrens, Eyre Peninsula, Murray
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
Eyre Hills (EYB03)Eyre Yorke Block
 Near Threatened   [lack of habitat]
Eyre Mallee (EYB05) 
 Least Concern
South Olary Plain (MDD01)Murray Darling Depression
 Least Concern
Murray Mallee (MDD02) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [limited habitat]
Lowan Mallee (MDD04) 
 Near Threatened
Murray Scroll Belt (RIV06)Riverina
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(ii))   [needs deep sand]
Gawler Volcanics (GAW02) 
 Rare   (IUCN: RA d(ii))   [needs deep sand]
Kingoonya (GAW05) 
 Rare   (IUCN: RA d(i,ii))   [needs deep sand]
Yellabinna (GVD06)Great Victoria Desert
 Least Concern
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 Orianthera]
Name derivation:
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. Nuda from the Latin 'nudus' meaning bare, naked; referring to its reduced leaves making the plant appear leaf-less or naked.
Distribution:
Found in the central part of South Australia, along a east-west line from the Nullarbor to the Murrayland, growing in mallee communities on sandy soils. Also found in Western Australia (under the new genus Orianthera), New South Wales and Victoria.
Status:
Native. Common in South Australia. Rare in Victoria. Common in the other states.
Plant description:
Erect undershrub with rush-like stems to 1 m high, with many and opposite branches and striated stems, often ending in a weak spine, glabrous or minutely hairy. Leaves reduced to triangular scales, to 2 mm long. Inflorescence clustered in leaf axils with 1–3 hairy white, bisexual flowers. Flowering between October and February.
Fruit type:
Brown ovoid capsule to 5.5 mm long and 5-3 mm wide.
Seed type:
Black convex seed, with a reticulated surface.
Embryo type:
Linear under-developed.
Seed collecting:
Collect maturing capsules, those that are fat, turning brown in colour, have not open and contain hard black seeds.
Seed cleaning:
Place the capsules in a tray and leave to dry for one to two weeks for it to split. Then 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.
Seed viability:
From one collection, the seed viability was high, at 90%.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA15 (0.06 g)66-Dec-2005DJD290
Eyre Peninsula
9-Aug-2006grown on-18°C
BGA1130 (0.7995 g)20-309-Dec-2005DJD319
Eyre Peninsula
9-Aug-200690%-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.