Hypocalymma tetrapterum | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Myrtales |
Family: | Myrtaceae |
Genus: | Hypocalymma |
Species: | H. tetrapterum |
Binomial name | |
Hypocalymma tetrapterum | |
Hypocalymma tetrapterum, commonly known as papillose myrtle, [2] 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 tetrapterum is a spreading to erect shrub that typically grows to a height of 0.4–1.5 m (1 ft 4 in – 4 ft 11 in). Its leaves are narrowly egg-shaped with the narrower end towards the base or narrowly oblong, 9–20 mm (0.35–0.79 in) long, 2–7 mm (0.079–0.276 in) wide and sessile or on a petiole up to 0.5 mm (0.020 in) long. The lower side of the leaves is convex with many oil glands, surrounded by a circle of small blisters. The flowers are 7–9 mm (0.28–0.35 in) in diameter, and often arranged in pairs with bracteoles 1.5–2.0 mm (0.059–0.079 in) long at the base. The floral tube is 1.1–1.3 mm (0.043–0.051 in) long and 3 mm (0.12 in) wide, and the sepals are egg-shaped, 1.2–1.7 mm (0.047–0.067 in) long and 2–3 mm (0.079–0.118 in) wide. The petals are white, 3–4 mm (0.12–0.16 in) long and there are 20 to 35 white stamens, the longest filaments 3–4 mm (0.12–0.16 in) long. Flowering occurs from June to October, and the fruit is a capsule 2.5–3.5 mm (0.098–0.138 in) long and 2.5–3.0 mm (0.098–0.118 in) in diameter. [2] [3] [4]
Hypocalymma tetrapterum was first formally described in 1862 by Nikolai Turczaninow in the Bulletin de la Société impériale des naturalistes de Moscou. [5] [6] The specific epithet (tetrapterum) means 'four-winged'. [7]
This species of Hypocalymma grows in sand or heavier soils, often in woodland, mainly between Eneabba and Badgingarra in the Geraldton Sandplains and Swan Coastal Plain bioregions of south-western Western Australia. [2] [4]
Calytrix depressa is a species of flowering plant in the myrtle family Myrtaceae and is endemic to the south-west of Western Australia. It is a glabrous shrub with linear to lance-shaped leaves and mauve to violet or yellow flowers with 35 to 75 stamens in several rows.
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.
Melaleuca thyoides, commonly known as salt lake honey-myrtle is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is an erect shrub with grey, papery or fibrous bark and very small, overlapping leaves on thin branchlets. It is a salt tolerant species often found on the edges of salt lakes.
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 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 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.
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 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.
Thryptomene mucronulata is a species of flowering plant in the family Myrtaceae and is endemic to Western Australia. It is an erect shrub with upward-pointing, overlapping, egg-shaped leaves with the narrower end towards the base and pink flowers with five petals and ten stamens.
Hypocalymma x linifolium 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 low, spreading shrub with narrowly egg-shaped to almost linear leaves and bright yellow flowers with 22 to 41 stamens in several rows.