Correa calycina

Correa calycina is a dense shrub that typically grows to {{cvt|1–3|m}} high and {{cvt|1–2|m}} wide with its branchlets covered with rust-coloured hairs. The leaves are narrow oblong to elliptic, {{cvt|20–30|mm}} long and {{cvt|10–25|mm}} wide on a petiole {{cvt|3–6|mm}} long. The flowers are borne singly on short side shoots on pedicels {{cvt|2–4|mm}} long. The calyx is green, top-shaped, square in cross-section and up to {{cvt|15|mm}} long with four lance-shaped lobes. The corolla is green ageing to mauve, pendulous, narrow cylindrical, up to {{cvt|30|mm}} long and densely covered with star-shaped hairs. The eight stamens are much longer than the petal tube.{{cite web |last1=Wilson |first1=Paul G. |editor-last1=Wilson |editor-first1=Annette J.G. |editor-last2=Bolton |editor-first2=P.E. |title=Correa calycina |url=https://profiles.ala.org.au/opus/foa/profile/Correa%20calycina |publisher=Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra |accessdate=10 July 2020}}{{cite web |title=Correa calycina |url=http://www.flora.sa.gov.au/cgi-bin/speciesfacts_display.cgi?form=speciesfacts&name=Correa_calycina |publisher=State Herbarium of South Australia |accessdate=10 July 2020}}

Correa calycina was first formally described in 1925 by John McConnell Black in Transactions and Proceedings of the Royal Society of South Australia from specimens collected in the Hindmarsh Valley by John Burton Cleland.{{cite web|title=Correa calycina|url= https://id.biodiversity.org.au/instance/apni/496242 |publisher=APNI|accessdate=10 July 2020}}{{cite journal |last1=Black |first1=John McConnell |title=Additions to the Flora of South Australia, No. 23. |journal=Transactions and Proceedings of the Royal Society of South Australia |date=1925 |volume=49 |page=273 |url=https://www.biodiversitylibrary.org/item/129840#page/276/mode/1up |accessdate=10 July 2020}}

Two varieties of C. calycina are accepted by the Australian Plant Census:

• Correa calycina J.M.Black var. calycina,{{cite web |title=Correa calycina var. calycina |url=https://biodiversity.org.au/nsl/services/apc-format/display/155663|publisher=Australian Plant Census |accessdate= 10 July 2020}} has leaves that are sparsely to moderately densely covered with star-shaped hairs on the lower surface;{{cite journal |last1=Wilson |first1=Paul G. |title=Notes on the genus Correa (Rutaceae). |journal=Nuytsia |date=1998 |volume=12 |issue=1 |page=92 |url=https://www.biodiversitylibrary.org/item/224909#page/98/mode/1up |accessdate=10 July 2020}}
• Correa calycina var. halmaturorum Paul G.Wilson,{{cite web |title=Correa calycina var. halmaturorum |url=https://biodiversity.org.au/nsl/services/apc-format/display/162975|publisher=Australian Plant Census |accessdate= 10 July 2020}} commonly known as the De Mole River Correa,{{cite web |title=Correa calycina var. halmaturorum (Rutaceae) De Mole River correa |url=https://spapps.environment.sa.gov.au/SeedsOfSA/speciesinformation.html?rid=1194 |publisher=South Australian Seed Conservation Service |accessdate=10 July 2020}} has leaves that are densely covered with star-shaped hairs on the lower surface. It was first formally described in 1998 by Paul Wilson in the journal Nuytsia.

The South Australian green correa occurs in a few isolated places on the southern Fleurieu Peninsula and on Kangaroo Island in South Australia where it usually grows on or near the banks of streams. Variety calycina occurs on the Fleurieu Peninsula near the Hindmarsh and Inman Rivers and Carrickalinga Creek. Variety halmaturorum is only known from along the De Mole River on Kangaroo Island, growing in Eucalyptus cladocalyx forest.

Correa calycina is classified as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and the South Australian Government National Parks and Wildlife Act, 1972. The main threats to the species are competition from weeds, especially Montpelier broom (Genista monspessulana), blackberry (Rubus fruticosus) and willow (Salix) species. It is also threatened by land clearing and grazing by livestock.{{cite web |title=Approved Conservation Advice for Correa calycina |url=http://www.environment.gov.au/biodiversity/threatened/species/pubs/7226-conservation-advice.pdf |publisher=Australian Government Department of the Environment |accessdate=11 July 2020}}

{{Reflist}}

{{Commons category}}

{{Taxonbar|from=Q5172738}}

calycina

Category:Flora of South Australia

Category:Plants described in 1925

Category:Taxa named by John McConnell Black