Micromyrtus sessilis

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Micromyrtus sessilis
Micromyrtus sessilis 01.jpg
In the Bolivia Hill Nature Reserve south of Tenterfield
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Micromyrtus
Species:
M. sessilis
Binomial name
Micromyrtus sessilis
Micromyrtus sessilis.png
Occurrence data from AVH

Micromyrtus sessilis is a species of flowering plant in the myrtle family, Myrtaceae and is endemic to eastern Australia. It is a dense, spreading shrub with small, more or less linear leaves and flowers that are sometimes single in the upper leaf axils or in dense clusters along the branches. It is similar to M. ciliata but has a more northerly distribution.

Contents

Description

Micromyrtus sessilis is a dense, spreading shrub growing to a height of 0.5–1.5 m (2–5 ft) and which has hairy young stems. The leaves are linear to lance-shaped with the narrower end towards the base, 1.5–3 mm (0.06–0.1 in) long and less than 1 mm (0.04 in) wide with a petiole about 1 mm (0.04 in) long. The flowers are sometimes arranged singly in upper leaf axils, sometimes form small heads and are sometimes arranged in dense clusters. There are two bracteoles at the base of each flower and which fall off as the flower opens. The floral cup is cone-shaped and has rounded ribs on its side. The sepals are less than 1 mm (0.04 in) long and the petals are white to pale pink, circular to elliptic in shape and 1–1.5 mm (0.04–0.06 in) long. There are five stamens 1–1.5 mm (0.04–0.06 in) long. Flowering mainly occurs in September and October. [2] [3]

Taxonomy and naming

Micromyrtus sessilis was first formally described in 1983 by John Green from a specimen collected near Miles and the description was published in Nuytsia. [3] [4] The specific epithet (sessilis) is a Latin word meaning "sitting" [5] referring to the flowers having a very short, or no peduncle. [3]

Distribution and habitat

This species occurs between Miles in Queensland and Griffith in New South Wales, mainly above 600 m (2,000 ft), in a range of habitats from mallee to forest, often in rocky places. [2] [3]

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<i>Micromyrtus clavata</i> Species of shrub

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Micromyrtus collina is a species of flowering plant in the myrtle family, Myrtaceae and is endemic to a small area in the southwest of Western Australia. It is an erect shrub with small, linear to narrowly egg-shaped leaves and small white flowers that turn pink as they age.

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<i>Micromyrtus flaviflora</i> Species of shrub

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Micromyrtus greeniana is a species of flowering plant in the myrtle family, Myrtaceae and is endemic to a small area in the west of Western Australia. It is a spindly shrub with linear to egg-shaped leaves and small white or cream-coloured flowers.

Micromyrtus hymenonema 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 overlapping, decussate linear leaves and pink flowers arranged singly in leaf axils with about 10 stamens in each flower.

<i>Micromyrtus monotaxis</i> Species of shrub

Micromyrtus monotaxis species of the family Myrtaceae and is endemic to the Western Australia. It is an erect shrub with egg-shaped leaves with the narrower end toward the base, white flowers 4.5–6.0 mm (0.18–0.24 in) in diameter, and 10 stamens.

Micromyrtus mucronulata species of the family Myrtaceae and is endemic to the Western Australia. It is a shrub with linear to narrowly egg-shaped leaves with the narrower end toward the base, and white flowers 3.0–3.5 mm (0.12–0.14 in) in diameter.

Micromyrtus navicularis is a species of flowering plant in the myrtle family, Myrtaceae and is endemic to a small area in the south of Western Australia. It is an erect shrub with narrowly egg-shaped leaves, and small white flowers in upper leaf axils with 10 stamens in each flower.

Micromyrtus ninghanensis is a species of the flowering plant in the family Myrtaceae and is endemic to the south-west of Western Australia. It is a low, spreading shrub with egg-shaped leaves with the narrower end toward the base, white flowers 3.0–3.5 mm (0.12–0.14 in) in diameter, and 10 stamens in each flower.

Micromyrtus papillosa is a species of flowering plant in the family Myrtaceae and is endemic to the south-west of Western Australia. It is sometimes an erect or low, otherwise spreading shrub with egg-shaped leaves with the narrower end towards the base, and white flowers with 5 stamens.

<i>Micromyrtus delicata</i> Species of shrub

Micromyrtus delicata is a species of flowering plant in the myrtle family, Myrtaceae and is endemic to a small area of northern coastal Queensland. It is a shrub with overlapping, linear to narrowly egg-shaped leaves with the narrower end towards the base and small white flowers arranged singly in leaf axils.

References

  1. ↑ "Micromyrtus sessilis". Australian Plant Census. Retrieved 20 March 2020.
  2. 1 2 Peter G. Wilson. "New South Wales Flora Online: Micromyrtus sessilis". Royal Botanic Gardens & Domain Trust, Sydney, Australia.
  3. 1 2 3 4 Green, John W. (1983). "Taxonomy of Micromyrtus ciliata (Myrtaceae) and allied species including three new species of Micromyrtus from eastern Australia and lectotypification of M. minutiflora" (PDF). Nuytsia. 4 (3): 322–324.
  4. ↑ "Micromyrtus sessilis". APNI. Retrieved 18 October 2017.
  5. ↑ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 699.
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