It has been suggested that this article be merged with Hypocalymma linifolium. (Discuss) Proposed since October 2024. |
Hypocalymma x linifolium is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to a restricted area in the south west of Western Australia. It is low, spreading shrub with narrowly egg-shaped to almost linear leaves and bright yellow flowers with 22 to 41 stamens in several rows.
| Hypocalymma × linifolium | |
|---|---|
| |
| Cultivated specimen | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Myrtales |
| Family: | Myrtaceae |
| Genus: | Hypocalymma |
| Species: | H. × linifolium
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| Binomial name | |
| Hypocalymma × linifolium | |
| Synonyms[1] | |
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Hypocalimna linifolium Turcz. orth. var. | |
Description
editHypocalymma x linifolium is a low, spreading shrub that typically grows to a height of 50–70 cm (20–28 in). Its leaves are sessile, narrowly egg-shaped to almost linear, 12–14 mm (0.47–0.55 in) long, 2–4 mm (0.079–0.157 in) wide and glabrous with grooves along the midvein and a short point on the tip. The flowers are in clusters of 3 to 5 and are more or less sessile with bracts 1–2 mm (0.039–0.079 in) long and bracteoles 1.5–2 mm (0.059–0.079 in) long. The sepals are 1.3–1.6 mm (0.051–0.063 in) long and the petals are bright yellow, 2.5–3 mm (0.098–0.118 in) long. There are 22 to 41 stamens shortly joined at the base, the longest filaments about 3 mm (0.12 in) long. Flowering occurs in August and September and the fruit is 2.5–3.0 mm (0.098–0.118 in) long.[2][3]
Taxonomy
editHypocalymma × linifolium was first formally described in 1862 by Nikolai Turczaninow in the Bulletin de la Société Impériale des Naturalistes de Moscou.[4][5] The specific epithet (linifolium) means 'thread-leaved'.[6]
Distribution and habitat
editThis species of Hypocalymma grows in sand between Badgingarra and Dandaragan in the Geraldton Sandplains and Swan Coastal Plain bioregions of south-western Western Australia.[3]
Conservation status
editHypocalymma × linifolium is listed as "Priority One" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions,[3] meaning that it is known from only one or a few locations where it is potentially at risk.[7]
References
edit- ^ a b "Hypocalymma × linifolium". Australian Plant Census. Retrieved 1 October 2024.
- ^ Rye, Barbara L. (2017). "Reinstatement of Hypocalymma linifolium and lectotypification of H. xanthopetalum (Myrtaceae: Chamelaucieae)". Nuytsia. 28: 317–319. doi:10.58828/nuy00854. Retrieved 1 October 2024.
- ^ a b c "Hypocalymma × linifolium". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ^ "Hypocalymma × linifolium". Australian Plant Name Index. Retrieved 1 October 2024.
- ^ Turczaninow, Nikolai (1862). "Decas Octava Generum Plantarum Hucusque Descriptorum". Bulletin de la Société impériale des naturalistes de Moscou. 35 (2): 325–326. Retrieved 1 October 2024.
- ^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 241. ISBN 9780958034180.
- ^ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Biodiversity, Conservation and Attractions. Retrieved 1 October 2024.