Hoya anulata is a species of flowering plant in the Apocynaceae or dogbane family and is endemic to Cape York and parts of Southeast Asia. It is a epiphytic or lithophytic vine with fleshy, egg-shaped leaves, fleshy pale pink and white flowers, and spindle-shaped follicles.
| Hoya anulata | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Gentianales |
| Family: | Apocynaceae |
| Genus: | Hoya |
| Species: | H. anulata
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| Binomial name | |
| Hoya anulata | |
| Synonyms[1] | |
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Description
editHoya anulata is a vine that reaches up to 3 m (9.8 ft) long and has fleshy, egg-shaped leaves, sometimes with the narrower end towards the base, 30–95 mm (1.2–3.7 in) long and 20–50 mm (0.79–1.97 in) wide, on a petiole 2–12 mm (0.079–0.472 in) long. The flowers are arranged in umbels 12–13 mm (0.47–0.51 in) in diameter of about 14 flowers on a peduncle about 70 mm (2.8 in) long, each flower on a pedicel 16–18 mm (0.63–0.71 in) long. The petals are wheel shaped, fleshy pale pink to white with triangular lobes 4–5 mm (0.16–0.20 in) long and about 5 mm (0.20 in) wide. The corona is pale pink and oblong with lobes about 3 mm (0.12 in) long and 1.0–1.5 mm (0.039–0.059 in) wide. Flowering has been observed in February, April and July, and the fruit is a spindle-shaped follicle 14 mm (0.55 in) long and 70–140 mm (2.8–5.5 in) long.[2][3]
Taxonomy
editHoya anulata was first formally described in 1905 by Rudolf Schlechter in the Journal of the Linnean Society, Botany, from specimens he collected in 1902 on the upper Nuru River at altitudes of about 400 m (1,300 ft) .[4][5]
Distribution and habitat
editThis species of Hoya grows as an epiphyte or lithophyte in rainforest and vine forest on Cape York, in Papuasia and on the Maluku Islands in Indonesia.[2][3]
Conservation status
editHoya anulata is listed as "near threatened" under the Queensland Government Nature Conservation Act 1992.[6]
References
edit- ^ a b "Hoya anulata". Australian Plant Census. Retrieved 29 November 2024.
- ^ a b Forster, Paul I.; Liddle, David J. "Hoya anulata". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 30 November 2024.
- ^ a b Mustaqim, Wendy A.; Astuti, Inggit P.; Rahayu, Sri (2018). "Hoya anulata (Apocynaceae:Asclepiodoideae): A new record for Maluku, Indonesia". Telopea. 21: 161–165. doi:10.7751/telopea12784. Retrieved 30 November 2024.
- ^ "Hoya aldrichii". APNI. Retrieved 30 November 2024.
- ^ Schlechter, Rudolf (1905). Schumann, Karl; Lauterbach, Karl (eds.). Nachträge zur Flora der deutschen Schutzgebiete in der Südsee. Leipzig: Gebrüder Borntraeger. p. 362. Retrieved 30 November 2024.
- ^ "Species profile—Hoya anulata". Queensland Government Department of Education and Science. Retrieved 30 November 2024.