Seeds of South Australia
Correa glabra var. turnbullii (Rutaceae)
Turnbull's Smooth Correa
List of species for Correa
Click on an image to enlarge it
Seed collecting:
October to December
Herbarium regions:
Flinders Ranges, Eastern, Northern Lofty, Murray, Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
Tintinara (NCP04)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Fleurieu (KAN02)Kanmantoo
 Near Threatened
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Rare   (IUCN: RA d(ii))   [more common than var. leucoclada]
Broughton (FLB02) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Olary Spur (FLB03) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Southern Flinders (FLB04) 
 Rare   (IUCN: RA d(ii))
Central Flinders (FLB06) 
 Near Threatened   (Probable Decline)   [northern edge of range; goats/grazing/lack of regeneration]
St Vincent (EYB02)Eyre Yorke Block
 Regionally Extinct   [regionally extinct]
Murray Mallee (MDD02)Murray Darling Depression
 Least Concern
Murray Lakes and Coorong (MDD03) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)   [edge of range, brown loams over limestone; could be extinct]
Bimbowrie (BHC05)Broken Hill Complex
 Endangered   (IUCN: EN D)   (Probable Decline)   [grazed by goats]
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 Correa]
Name derivation:
Correa named after Jose Francisco Correa de Serra (1751-1823), a Portuguese botanist. Glabra from Latin meaning smooth, without hairs. Turnbullii possibly named after John Wright Turnbull (1940 - ), an English-born plant and seed collector who began his career as a forester with the Woods and Forests Department of South Australia.
Distribution:
Endemic to South Australia and found on the rocky hills of the Mount Lofty and Flinders Ranges, the plains of the Murray, and in the upper South-east.
Status:
Native. Uncommon in South Australia.
Plant description:
Erect dense shrub to 3 m high and 3 m with, with subglabrous branches. Leaves narrowly to broadly elliptic or obovate, to 5 cm long and 3 cm wide, glabrous or subglabrous above and below. Flowers solitary, rarely more, terminal on axillary or lateral shoots with tubuler, red with green tip flowers. This variety differ from the other two varieties by having a red flower rather than green or yellow. Flowering between May and August. 
Fruit type:
Pale brown capsule to 8 mm long enclose by the sepals.
Seed type:
Mottled brown reniform seed to 6.5 mm long and 2.5 mm wide, smooth surface.
Embryo type:
Linear fully developed.
Seed collecting:
Collect mature capsules, those that are turning a pale straw colour and contain hard seeds, either by hands or place small breathable bags over immature capsules to collect seed. Capsules maybe hard to see as it is enclose by the sepals.
Seed cleaning:
Place the capsules in a tray and leave to dry for a weeks. Then rub the capsules gently by hand to dislodge the seeds. Be very careful as the seed coat is thin and easily damaged. 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 85%.
Seed germination:
This species has morphophysiological dormancy and can be difficult to germinate.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
2750 (27.5 g)
2750 (27.5 g)
29-Nov-2005DJD259
Murray
8-Aug-200685%-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.