| Hypocalymma uncinatum | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Myrtales |
| Family: | Myrtaceae |
| Genus: | Hypocalymma |
| Species: | H. uncinatum |
| Binomial name | |
| Hypocalymma uncinatum | |
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.
Hypocalymma uncinatum is an erect shrub that typically grows to 0.7–2.5 m (2 ft 4 in – 8 ft 2 in) high, 0.9–1.2 m (2 ft 11 in – 3 ft 11 in) wide and has glabrous young stems. Its leaves are linear in outline, 18–30 mm (0.71–1.18 in) long, 0.5–1.3 mm (0.020–0.051 in) wide and 0.3–0.6 mm (0.012–0.024 in) thick. The lower side of the leaves is deeply convex with many oil glands. The flowers are 7–9 mm (0.28–0.35 in) in diameter, and often arranged in pairs with bracteoles 1.5–2.5 mm (0.059–0.098 in) long at the base. The floral tube is about 1.0–1.5 mm (0.039–0.059 in) long and about 3 mm (0.12 in) wide and the sepals are broadly egg-shaped, 1.5–2.3 mm (0.059–0.091 in) long and 2.3–2.7 mm (0.091–0.106 in) wide. The petals are white, 3.0–3.5 mm (0.12–0.14 in) long and there are 25 to 35 white stamens, the longest filaments 3.5–4.0 mm (0.14–0.16 in) long. Flowering mainly occurs from June to early October, and the fruit is a capsule 2.0–2.5 mm (0.079–0.098 in) long and 3.0–3.5 mm (0.12–0.14 in) in diameter. [2] [3] [4]
Hypocalymma uncinatum was first formally described in 2003 by Arne Strid and Greg Keighery in the Nordic Journal of Botany from specimens collected on [south-east of Muntadgin in 1963. [3] [5] The specific epithet (uncinatum) means 'hooked' or 'barbed', referring to the tips of the leaves. [4]
This species of Hypocalymma grows on granite outcrops in woodland, thicket or scrub between Merredin and Lake King in the Avon Wheatbelt and Mallee bioregions of south-western Western Australia, where it grows in sandy or loamy soils with lateritic gravel. [2] [4]
Hypocalymma uncinatum is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions. [2]
Hypocalymma robustum, commonly known as Swan River myrtle, 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, multistemmed shrub or shrublet with linear to narrowly oblong leaves and pink flowers arranged in pairs in leaf axils, with 35 to 60 stamens.
Hypocalymma strictum 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, triangular in cross section, and deep pink flowers with 30 to 50 stamens.
Hypocalymma connatum is a species of flowering in the myrtle family Myrtaceae, and is endemic to Western Australia. It is a shrub, with narrowly egg-shaped leaves, probably white flowers, but has not been collected since 1935.
Hypocalymma cordifolium is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to the south west of Western Australia. It is usually an low-growing shrub, but is sometimes erect, with winged stems, heart-shaped leaves arranged in opposite pairs, white or pale pink flowers mostly arranged in pairs in leaf axils, and fruit containing pearly white or pale brown seeds.
Hypocalymma elongatum is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to the south west of Western Australia. It is a large, bushy shrub with linear leaves more or less triangular in cross section, and pink flowers arranged in pairs in leaf axils with 30 to 50 stamens.
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.
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 jessicae, commonly known as barrens myrtle, 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.
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.
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.
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.
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.
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.
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.
Hypocalymma speciosum is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to the Stirling Range in southern Western Australia. It is a bushy shrub with heart-shaped, egg-shaped or circular leaves and deep pink-purple flowers with 25 to 50 stamens in several rows.
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.
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.