Thryptomene duplicata is a species of flowering plant in the family Myrtaceae and is endemic to Western Australia. It is a spreading shrub with upward pointing, egg-shaped leaves with the narrower end towards the base, and white flowers with five petals and about fifteen stamens in two whorls.

Thryptomene duplicata

Priority One — Poorly Known Taxa (DEC)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Thryptomene
Species:
T. duplicata
Binomial name
Thryptomene duplicata

Description

edit

Thryptomene duplicata is a spreading shrub that typically grows to about 0.8 m (2 ft 7 in) high and 2 m (6 ft 7 in) wide. Its leaves are pointed upwards, overlapping each other and egg-shaped with the narrower end towards the base, about 2.6 mm (0.10 in) long and 2.5–3.5 mm (0.098–0.138 in) wide on a petiole up to 1.0 mm (0.039 in) long. The flowers are arranged in pairs or threes on peduncles 0.7–1.4 mm (0.028–0.055 in) long with egg-shaped bracteoles about 2 mm (0.079 in) long that persist until the fruit falls. The flowers are about 6 mm (0.24 in) in diameter with egg-shaped sepals about 1.4 mm (0.055 in) long, with the narrower end towards the base. The petals are white, about 2 mm (0.079 in) long with minute teeth on the edges, and there are about fifteen stamens arranged in two whorls. Flowering occurs around December.[2][3]

Taxonomy

edit

Thryptomene duplicata was first formally described in 2001 by Barbara Lynette Rye and Malcolm Eric Trudgen in the journal Nuytsia from specimens collected by Trudgen near Binnu in 1993.[2][4] The specific epithet (duplicata) means "doubled", referring to the number of stamens compared to that of other thryptomenes.[2]

Distribution and habitat

edit

This thryptomene is only known from a single population near Binnu where it grows in sandy soil in open shrubland.[3]

Conservation status

edit

Thryptomene duplicata is classified as "Priority One" by the Government of Western Australia Department of Parks and Wildlife,[3] meaning that it is known from only one or a few locations that are potentially at risk.[5]

References

edit
  1. ^ "Thryptomene duplicata". Australian Plant Census. Retrieved 28 April 2021.
  2. ^ a b c Rye, Barbara L.; Trudgen, Malcolm E. (2001). "A taxonomic revision of Thryptomene section Thryptomene (Myrtaceae)". Nuytsia. 13 (3): 520–521. Retrieved 28 April 2021.
  3. ^ a b c "Thryptomene duplicata". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ^ "Thryptomene duplicata". APNI. Retrieved 28 April 2021.
  5. ^ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 28 April 2021.