Biology:Epacris purpurascens
| Epacris purpurascens | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Ericales |
| Family: | Ericaceae |
| Genus: | Epacris |
| Species: | E. purpurascens
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| Binomial name | |
| Epacris purpurascens Banks ex Sims[1]
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| Synonyms[1] | |
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Epacris purpurascens is a species of flowering plant in the heath family Ericaceae and is endemic to eastern New South Wales. It is an erect shrub with egg-shaped or heart-shaped, sharply-pointed leaves and white or pink, tube-shaped flowers.
Description
Epacris purpurascens is an erect shrub that typically grows to a height of up to 0.5–1.5 m (1 ft 8 in–4 ft 11 in), its stems with prominent leaf scars and the branchlets shaggy-hairy. The leaves are pressed against the stem near their bases, and are egg-shaped or heart-shaped, 7–21 mm (0.28–0.83 in) long and 4.4–9 mm (0.17–0.35 in) wide on a petiole 0.8–1.5 mm (0.031–0.059 in) long. The leaves are concave and taper to a sharp, bristly point. The flowers are arranged along the branches, each flower on a pedicel about 1–2 mm (0.039–0.079 in) long. The sepals are 4.3–6.5 mm (0.17–0.26 in) long, the petals white or pink, and joined at the base, forming a bell-shaped tube 4.3–7.7 mm (0.17–0.30 in) long with lobes 3.6–5 mm (0.14–0.20 in) long.[2][3][4]
Taxonomy and naming
Epacris purpurascens was first formally described in 1809 by John Sims in Curtis's Botanical Magazine from an unpublished description by Joseph Banks.[5][6] The specific epithet (purpurascens) means "becoming purple".[7]
In 1824, Joachim Conrad Loddiges, George Loddiges and William Loddiges described two varieties of E. purpurescens and in 1901 Joseph Maiden and Ernst Betche reduced Epacris onosmiflora A.Cunn. to E. purpurascens var. onosmiflora. The names of the following varieties are accepted by the Australian Plant Census:
- Epacris purpurascens var. onosmiflora (A.Cunn.) Maiden & Betche[8] has a petal tube 6.2–7.7 mm (0.24–0.30 in) long and longer than the sepals. It mainly flowers in October and November.[9]
- Epacris purpurascens Banks ex Sims var. purpurascens[10] has a petal tube 4.3–6.0 mm (0.17–0.24 in) long and up to the length of the sepals. It flowers from July to September.[11]
Distribution and habitat
This epacris grows in forest and scrub near creeks and swamps in eastern New South Wales. The variety onosmiflora is restricted to the Blue Mountains and var. purpurascens grows on coastal plateaus in the Sydney and Gosford districts.[2][3][4][9][11]
References
- ↑ 1.0 1.1 "Epacris purpurascens". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/79533.
- ↑ 2.0 2.1 "Epacris purpurascens". Royal Botanic Garden Sydney. https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Epacris~purpurascens.
- ↑ 3.0 3.1 Robinson, Les (1991). Field guide to the native plants of Sydney. Kenthurst, NSW: Kangaroo Press. p. 107. ISBN 0864171927.
- ↑ 4.0 4.1 Fairley, Alan; Moore, Philip (1989). Native plants of the Sydney district : an identification guide. Kenthurst: Kangaroo Press in association with the Society for Growing Australian Plants-NSW. p. 95. ISBN 0864172613.
- ↑ "Epacris purpurascens". APNI. https://id.biodiversity.org.au/instance/apni/494857. Retrieved 7 July 2022.
- ↑ Sims, John (1809). Curtis's Botanical Magazine. 27–28. London. https://www.biodiversitylibrary.org/page/473015#page/149/mode/1up. Retrieved 7 July 2022.
- ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 287. ISBN 9780958034180.
- ↑ "Epacris purpurascens var. onosmiflora". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/79573.
- ↑ 9.0 9.1 "Epacris purpurascens var. onosmiflora". Royal Botanic Garden Sydney. https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=in&name=Epacris~purpurascens~var.+onosmiflora.
- ↑ "Epacris purpurascens var. purpurascens". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/79591.
- ↑ 11.0 11.1 "Epacris purpurascens var. purpurascens". Royal Botanic Garden Sydney. https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=in&name=Epacris~purpurascens~var.+purpurascens.
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