Plants of
South Australia
Correa calycina var. calycina
Rutaceae
South Australian Green Correa
Display all 13 images
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
Enlarge Map
Copy Map
Copy Map
Display IBRA region text

Etymology

Correa named after Jose Francisco Correa de Serra (1751-1823), a Portuguese botanist. Calycina from the Greek 'kalux' meaning case of bud, husk; referring to its persistent (or conspicuous) calyx.

Distribution and status

Endemic to South Australia and found only at a few sites on the Fleurieu Peninsula, growing in wet areas, including riparian, cliffs, hillslopes and dry tributaries. Native. Very rare in south Australia.
Herbarium region: Southern Lofty
NRM region: Adelaide and Mount Lofty Ranges
AVH map: SA distribution map (external link)

Plant description

Tall dense shrub to 3 high and 2 m wide with stems covered in dense minute hairs. Leaves narrowly ovate or ovate to elliptic, to 4 cm long and 2.5 cm wide, glabrous to tomentose on top and sparsely to moderately densely stellate-hairy on the underside. Inflorescence solitary on lateral or axillary branchlets with tubular, green often darkening to mauve flowers. This variety differ from the other variety found in South Australia Correa calycina var. halmaturorum which have dense stellate-hairs on the underside of the leaves rather than sparsely to moderately dense stellate-hairs. Flowering between April and September. Fruits are pale brown capsule to 8 mm long with 1-4 segments enclose by the sepals. Seeds are mottled brown reniform seed to 5.5 mm long and 2.5 mm wide, with a smooth surface. Seed embryo type is linear fully developed.

Seed collection and propagation

Collect seeds between October and December. 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 green sepals. 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. From two collections, the seed viability was high, at 100%. This species has morphophysiological dormancy and can be difficult to germinate.

Seeds stored:
  Hide
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
 
MSB

1,200 (11.64 g)
~3018-Jan-2006DJD350
Southern Lofty
BGA540 (4.59 g)8-Dec-2006KHB68
Southern Lofty
20-Jul-2009100%-18°C
BGA790 (4.93 g)10-Dec-2007PJA161
Southern Lofty
1-Jun-201080%-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.