Hillgrove gum | |
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Eucalyptus michaeliana in the Oxley Wild Rivers National Park | |
Rare (NCA) | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Myrtales |
Family: | Myrtaceae |
Genus: | Eucalyptus |
Species: | E. michaeliana |
Binomial name | |
Eucalyptus michaeliana | |
Eucalyptus michaeliana, commonly known as Hillgrove gum or brittle gum, [2] is a species of small to medium-sized tree endemic to eastern Australia. It has smooth mottled greyish bark, lance-shaped to curved adult leaves, flower buds in compound umbels, white flowers and cup-shaped or barrel-shaped fruit.
Eucalyptus michaeliana is a tree that typically grows to a height of 30 m (98 ft) and forms a lignotuber. It has smooth, mottled, grey and white or cream-coloured bark shed in plates or flakes. Young plants and coppice regrowth have lance-shaped to broadly lance-shaped leaves with the same dull green colour on both sides, 50–150 mm (2.0–5.9 in) long and 12–55 mm (0.47–2.17 in) wide. Adult leaves are lance-shaped to curved, 90–180 mm (3.5–7.1 in) long and 10–23 mm (0.39–0.91 in) wide on a petiole 15–30 mm (0.59–1.18 in) long. The flower buds are arranged in leaf axils on a peduncle with three to five groups of buds, each with three or seven buds. The peduncle is 3–5 mm (0.12–0.20 in) long, each bud on a pedicel 2–5 mm (0.079–0.197 in) long. Mature buds are oblong, 5–6 mm (0.20–0.24 in) long and 3–4 mm (0.12–0.16 in) wide with a conical to rounded operculum. Flowering occurs in March and the flowers are white. The fruit is a woody, cup-shaped or barrel-shaped capsule 3–5 mm (0.12–0.20 in) long and 4–6 mm (0.16–0.24 in) wide with the valves near rim level or below it. [2] [3] [4]
Eucalyptus michaeliana was first formally described in 1938 by William Blakely from specimens collected by John Fauna Campbell near Hillgrove in 1907. The description was published in Proceedings of the Linnean Society of New South Wales . [5] [6] [7] The specific epithet honours Norman Michael (1884–1951), a clergyman who collected plant specimens in Queensland, including this species that he collected in 1937 whilst he was a minister at Boonah. [3]
Hillgrove gum grows in woodland on sandy soils and has a disjunct distribution between St Albans and Wollomombi in New South Wales and in south-east Queensland. [2] [3] [4]
Eucalyptus cypellocarpa, commonly known as mountain grey gum, mountain gum, monkey gum or spotted mountain grey gum, is a species of straight, smooth-barked forest tree that is endemic to southeastern Australia. It has relatively large, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and usually cylindrical or barrel-shaped fruit.
Eucalyptus scoparia, commonly known as the Wallangarra white gum or willow gum, is a small to medium-sized tree that is endemic to a small area of eastern Australia. It has smooth bark, linear to lance-shaped or curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped, hemispherical or bell-shaped fruit. It is restricted to a few rocky mountains near the border between New South Wales and Queensland but is widely cultivated.
Eucalyptus moluccana, commonly known as the grey box, gum-topped box or terriyergro, is a medium-sized to tall tree with rough bark on part or all of the trunk, smooth bark above, lance-shaped adult leaves, flower buds usually in groups of seven, white flowers and cup-shaped to barrel-shaped fruit. It is found in near-coastal areas of Queensland and New South Wales.
Eucalyptus globulus subsp. maidenii, commonly known as Maiden's gum, is a subspecies of tree that is endemic to southeastern Australia. It has mostly smooth bark with some persistent slabs of old bark at the base, juvenile leaves with one glaucous side, lance-shaped adult leaves, flower buds arranged in groups of seven, white flowers and conical, pedicellate, sometimes glaucous fruit that is more or less square in cross-section
Eucalyptus smithii, commonly known as the gully gum, gully peppermint, blackbutt peppermint, or ironbark peppermint, is a species of medium-sized to tall tree, sometimes a mallee, that is endemic to southeastern Australia. It has rough, compact bark on the trunk, smooth ribbony bark above, narrow lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped, bell-shaped or hemispherical fruit.
Eucalyptus fraxinoides, commonly known as the white ash or white mountain ash, is a medium-sized to tall tree of mountain country and is endemic to south eastern Australia. It has rough, compacted greyish bark on the lower trunk, smooth white bark with scribbles above, lance-shaped adult leaves, flower buds in groups of between seven and eleven, white flowers and barrel-shaped or urn-shaped fruit.
Eucalyptus propinqua, commonly known as the grey gum or small-fruited grey gum, is a species of medium-sized to tall tree that is endemic to eastern Australia. It has smooth, mottled bark, lance-shaped to curved adult leaves that are paler on the lower surface, flower buds in groups of between seven and fifteen, white flowers and conical or hemispherical fruit.
Eucalyptus parramattensis, commonly known as the Parramatta red gum or drooping red gum, is a species of small to medium-sized tree that is endemic to eastern New South Wales. It has smooth, mottled bark, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and hemispherical fruit.
Eucalyptus racemosa, commonly known as snappy gum or narrow-leaved scribbly gum, is a species of small to medium-sized tree that is endemic to eastern Australia. It has smooth, mottled bark, lance-shaped to curved or egg-shaped adult leaves, flower buds in groups of between seven and fifteen, white flowers and cup-shaped, conical or hemispherical fruit.
Eucalyptus dawsonii, known as slaty gum or slaty box, is a species of small to medium-sized tree that is endemic to a small area of New South Wales. It has smooth, white, grey or yellow bark, sometimes with a short stocking of rough, flaky bark, lance-shaped to curved adult leaves, flower buds in groups of seven on a branching inflorescence, white flowers and conical to barrel-shaped fruit.
Eucalyptus bridgesiana, commonly known as apple box, apple, apple gum or but-but, is a medium to large sized tree. It has rough, fibrous bark on the trunk and larger branches, smooth grey bark above, glossy green, lance-shaped adult leaves, flower buds in groups of seven, white flowers and hemispherical fruit.
Eucalyptus dunnii, commonly known as Dunn's white gum or simply white gum, is a species of medium-sized to tall tree that is endemic to eastern Australia. It has rough bark near the base, smooth white to cream-coloured bark above, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped, conical or hemispherical fruit.
Eucalyptus glaucina, commonly known as the slaty red gum, is a species of small to medium-sized tree endemic to New South Wales. It has smooth, white and grey bark, lance-shaped adult leaves, flower buds in groups of seven, white flowers and hemispherical fruit with the valves protruding well above the level of the rim.
Eucalyptus interstans is a species of small to medium-sized tree endemic to New South Wales and Queensland. It has smooth white or greyish bark, lance-shaped or curved adult leaves, flower buds in groups of between seven and eleven, white flowers and cup-shaped to hemispherical fruit.
Eucalyptus intertexta, commonly known as inland red box, western red box, gum coolibah or the bastard coolibah, is a species of tree that is endemic to central Australia. It has rough, fibrous or flaky bark on the base of the trunk, smooth white to brownish bark above, lance-shaped adult leaves, flower buds in groups of seven on the ends of branchlets, white flowers and cup-shaped to hemispherical fruit.
Eucalyptus lacrimans, commonly known as weeping snow gum, is a species of small tree that is endemic to New South Wales. It has smooth white bark, lance-shaped adult leaves with more or less parallel veins, flower buds in groups of seven to eleven or more, white flowers and cup-shaped, conical or barrel-shaped fruit.
Eucalyptus nandewarica, commonly known as mallee red gum, is a species of tree or mallee that is endemic to a small area of western New South Wales. It has mostly smooth bark, lance-shaped adult leaves, flower buds in groups of three or seven, white flowers and cup-shaped or hemispherical fruit.
Eucalyptus prava, commonly known as orange gum, is a species of small to medium-sized tree that is endemic to eastern Australia. It has smooth, mottled bark, lance-shaped or curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped or hemispherical fruit.
Eucalyptus rudderi, or Rudder's box, is a species of tree that is endemic to northern New South Wales. It has rough fibrous or flaky bark on the trunk and branches, lance-shaped adult leaves, flower buds in groups of seven, white flowers and barrel-shaped or hemispherical fruit.
Eucalyptus brevifolia, commonly known as snappy white gum or northern white gum, is a tree that is endemic to northern Australia. It has smooth, powdery white bark, lance-shaped adult leaves, buds arranged in group of seven, white flowers and cup-shaped or barrel-shaped fruit.