Hypocalymma jessicae

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Hypocalymma jessicae
Hypocalymma jessicae.jpg
In the ANBG
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Hypocalymma
Species:
H. jessicae
Binomial name
Hypocalymma jessicae

Hypocalymma jessicae, commonly known as Barrens myrtle, [2] is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to the south west of Western Australia. It is an erect, spreading shrub, with narrowly egg-shaped leaves with the narrower end towards the base, and pale to bright pink flowers mostly arranged in pairs in leaf axils, with 35 to 100 stamens in several rows.

Contents

Description

Hypocalymma jessicae is an erect, spreading shrub that typically grows to a height of 0.3–1.2 m (1 ft 0 in – 3 ft 11 in) high and 1.2–1.5 cm (0.47–0.59 in) wide. Its leaves are narrowly egg-shaped with the narrower end towards the base or linear, 5–15 mm (0.20–0.59 in) long, 0.5–1 mm (0.020–0.039 in) wide and 0.4–1 mm (0.016–0.039 in) thick on a petiole 0.4–1.3 mm (0.016–0.051 in) long. Both sides of the leaves are the same shade of green and there are 2 main rows of oil glands on the lower surface. The flowers are 8.0–10.5 mm (0.31–0.41 in) in diameter, mostly borne in pairs in leaf axils on a peduncle 1–2.5 mm (0.039–0.098 in) long, each flower on a pedicel 0.3–0.8 mm (0.012–0.031 in) long, with bracteoles 1.3–1.8 mm (0.051–0.071 in) long but that fall off as the flowers open. The floral tube is 1.3–2.0 mm (0.051–0.079 in) long and 2.5–3.5 mm (0.098–0.138 in) in diameter and the sepal lobes are broadly egg-shaped, 1.1–1.6 mm (0.043–0.063 in) long, 1.5–2.3 mm (0.059–0.091 in) wide. The petals are pale to bright pink, 3.0–4.0 mm (0.12–0.16 in) long and there are 35 to 100 pink stamens in several rows, the longest filaments 4.0–5.5 mm (0.16–0.22 in) long. Flowering occurs throughout the year, and the fruit is a capsule 2.5–3.75 mm (0.098–0.148 in) long and 3.0–3.5 mm (0.12–0.14 in) in diameter. [2] [3] [4] [5]

Taxonomy

Hypocalymma jessicae was first formally described in 2003 by Arne Strid and Gregory John Keighery in the Nordic Journal of Botany from specimens collected on the south-east side of East Mount Barren by Arne Strid in 1983. [5] [6] The specific epithet (jessicae) honours Jessica Strid, who assisted in the field in locating the species with her father. [5]

Distribution and habitat

This species of Hypocalymma grows in shallow sand on rocky outcrops in the Ravensthorpe Range and Fitzgerald River National Park in the Esperance Plains bioregion of south-western Western Australia. [2]

Related Research Articles

<i>Hypocalymma xanthopetalum</i> Species of flowering plant

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<i>Hypocalymma robustum</i> Species of flowering plant

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<i>Hypocalymma strictum</i> Species of flowering plant

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<i>Hypocalymma cordifolium</i> Species of flowering plant

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Hypocalymma ericifolium is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to the south west of Western Australia. It is an erect shrublet with linear leaves that are more or less triangular in cross section, and bright yellow flowers arranged in pairs in leaf axils with 30 to 50 stamens.

Hypocalymma gardneri is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to the south west of Western Australia. It is a widely spreading subshrub, with linear leaves and yellow flowers arranged in pairs in leaf axils, with 80 to 105 stamens in several rows.

<i>Hypocalymma hirsutum</i> Species of flowering plant

Hypocalymma hirsutum is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to the south west of Western Australia. It is a low-growing shrub, with leaves arranged in opposite pairs, narrowly egg-shaped with the narrower end towards the base, and bright yellow flowers arranged singly in leaf axils, with usually 80 to 110 stamens in several rows.

Hypocalymma longifolium, commonly known as long-leaved myrtle, is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to a restricted part of Western Australia. It is an open shrub with linear leaves, and white or cream-coloured flowers arranged in pairs in leaf axils, with 40 to 50 stamens in several rows.

Hypocalymma melaleucoides, commonly known as Fitzgerald myrtle, is a member of the family Myrtaceae and is endemic to the Fitzgerald River National Park in the south of Western Australia. It is a spreading shrub with linear leaves that are round in cross-section, and bright pink flowers, with 35 to 55 stamens in several rows.

<i>Hypocalymma myrtifolium</i> Species of flowering plant

Hypocalymma myrtifolium 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 an erect shrub with egg-shaped to elliptic leaves and white or cream-coloured flowers with 30 to 50 stamens in several rows.

Hypocalymma minus is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to the south west of Western Australia. It is a low-growing shrub, with heart-shaped leaves arranged in opposite pairs, white or pale pink flowers usually arranged singly in leaf axils with 10 to 20 stamens in one or two rows.

<i>Hypocalymma phillipsii</i> Species of flowering plant

Hypocalymma phillipsii is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to a restricted part of Western Australia. It is an erect, spreading shrub with elliptic to very broadly egg-shaped leaves, and white flowers arranged singly or in pairs in leaf axils, with 30 to 50 stamens in several rows.

<i>Hypocalymma puniceum</i> Species of flowering plant

Hypocalymma puniceum, commonly known as large myrtle, is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to the south-west of Western Australia. It is a spreading shrub with linear leaves and bright pink flowers arranged singly in leaf axils, with 35 to 55 stamens in several rows.

<i>Hypocalymma scariosum</i> Species of flowering plant

Hypocalymma scariosum is a species of flowering in the myrtle family Myrtaceae, and is endemic to the south of Western Australia. It is an erect, apparently short-lived, glabrous shrublet, with grooved linear leaves, and cream-coloured or sometimes yellow flowers with 12 to 20 stamens.

<i>Hypocalymma serrulatum</i> Species of flowering plant

Hypocalymma serrulatum commonly known as early myrtle, is a species of flowering in the myrtle family Myrtaceae, and is endemic to the south-west of Western Australia. It is an erect shrub, with linear leaves, and white or pink flowers with 40 to 55 stamens.

<i>Hypocalymma sylvestre</i> Species of flowering plant

Hypocalymma sylvestre commonly known as Chittering myrtle, is a species of flowering in the myrtle family Myrtaceae, and is endemic to a restricted part of the south-west of Western Australia. It is a spreading shrub, with broadly egg-shaped to heart-shaped leaves, and pale yellow flowers with 100 to 200 stamens in several rows.

Hypocalymma tenuatum, commonly known as Lesueur myrtle, is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to the a restricted area in the south-west of Western Australia. It is a low, spreading shrub, with linear leaves, and white or pale yellow flowers with 20 to 25 stamens.

<i>Hypocalymma tetrapterum</i> Species of flowering plant

Hypocalymma tetrapterum, commonly known as papillose myrtle, is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to the a restricted area in the south-west of Western Australia. It is a shrub, with narrowly egg-shaped leaves with the narrower end towards the base, and white yellow flowers with 20 to 35 stamens in several rows.

Hypocalymma uncinatum is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to the south-west of Western Australia. It is an erect shrub, with linear leaves, and white flowers with 25 to 35 stamens.

References

  1. ↑ "Hypocalymma jessicae". Australian Plant Census. Retrieved 29 September 2024.
  2. 1 2 3 "Hypocalymma jessicae". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. ↑ Rye, Barbara L.; Keighery, Greg J. "Hypocalymma jessicae". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 29 September 2024.
  4. ↑ Strid, P. Arne K.; Keighery, Greg J. (2003). "A taxonomic review of the genus Hypocalymma (Myrtaceae)". Nordic Journal of Botany. 22 (5): 562–563.
  5. 1 2 3 Keighery, Greg J.; Rye, Barbara L.; Tauss, Catherine T. (2023). "Update to the taxonomy of Hypocalymma sect. Hypocalymma (Myrtaceae: Chamelaucieae), including hybrids and new species". Nuytsia. 34: 37–39. Retrieved 30 September 2024.
  6. ↑ "Hypocalymma jessicae". Australian Plant Name Index. Retrieved 29 September 2024.
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