Calytrix praecipua

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Calytrix praecipua
Calytrix praecipua - Flickr - Kevin Thiele.jpg
Status DECF P3.svg
Priority Three — Poorly Known Taxa (DEC)
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Calytrix
Species:
C. praecipua
Binomial name
Calytrix praecipua

Calytrix praecipua is a species of flowering plant in the myrtle family Myrtaceae and is endemic to inland areas of Western Australia. It is a shrub with decussate leaves and pink to pinkish-white flowers with about 21 to 27 stamens in a single row.

Contents

Description

Calytrix praecipua is a glabrous shrub that typically grows to a height of 30–70 cm (12–28 in). Its leaves are decussate, lance-shaped with the narrower end towards the base, 2–8 mm (0.079–0.315 in) long and 0.8–1.2 mm (0.031–0.047 in) wide on a petiole 0.3–1 mm (0.012–0.039 in) long with stipules up to 0.25 mm (0.0098 in) long at the base. The flowers are borne on a narrowly funnel-shaped peduncle 5.5–6.0 mm (0.22–0.24 in) long with elliptic lobes 2.5–3.0 mm (0.098–0.118 in) long. The floral tube is 9.5–10 mm (0.37–0.39 in) long and spindle-shaped with ten ribs. The sepals are more or less round to egg-shaped, 1.5–1.7 mm (0.059–0.067 in) long and 1.5–1.8 mm (0.059–0.071 in) wide with an awn up to 14 mm (0.55 in) long. The petals are pink to pinkish-white, lance-shaped to narrowly elliptic, 6.5–8 mm (0.26–0.31 in) long and 1.75–2.4 mm (0.069–0.094 in) wide, and there are about 21 to 27 stamens in a single row. Flowering occurs in June. [2] [3]

Taxonomy

Calytrix praecipua was first formally described in 1987 by Lyndley Craven in the journal Brunonia from specimens he collected 30 km (19 mi) east of Laverton. [2] [4] The specific epithet (praecipua) means 'especial' or 'extraordinary', [5] referring to the "significance of this species in interpreting the evolution of the gynoecium in Calytrix". [2]

Distribution and habitat

This species of Calytrix grows on breakaways and among outcrops in a scattered area around Laverton in the Gascoyne, Great Victoria Desert, Little Sandy Desert and Murchison bioregions of inland Western Australia. [2] [3]

Conservation status

Calytrix paucicostata is listed as "Priority Three" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, [3] meaning that it is poorly known and known from only a few locations but is not under imminent threat. [6]

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References

  1. "Calytrix praecipua". Australian Plant Census. Retrieved 2 January 2025.
  2. 1 2 3 4 Craven, Lyndley (1987). "A taxonomic revision of Calytrix Labill. (Myrtaceae)". Brunonia: 50–51.
  3. 1 2 3 "Calytrix praecipua". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. "Calytrix praecipua". Australian Plant Name Index. Retrieved 2 January 2025.
  5. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 282. ISBN   9780958034180.
  6. "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Biodiversity, Conservation and Attractions. Retrieved 2 January 2025.