| Hard milkwood | |
|---|---|
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| Foliage | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Gentianales |
| Family: | Apocynaceae |
| Genus: | Alstonia |
| Species: | A. muelleriana |
| Binomial name | |
| Alstonia muelleriana | |
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| Synonyms [4] | |
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Alstonia muelleriana is a tree in the dogbane family Apocynaceae which is native to southern Papua New Guinea and northeastern Queensland.
Alstonia muelleriana is an evergreen tree growing to between 15 and 25 m (49 and 82 ft) in height. [5] [6] The leaves are simple and produced in whorls of three or four. They measure up to 19 by 7 cm (7.5 by 2.8 in) and are attached to the twigs by a petiole about 8 mm (0.3 in) long. [5] [6] [7] They are softly hairy on both sides (less so on the top) and have up to 18 lateral veins either side of the midrib. [5] [6] [7]
The inflorescences are terminal or axillary panicles up to 10 cm (3.9 in) long. [6] The small flowers are about 5 mm (0.2 in) diameter and are 5-merous, with five green sepals and five white/cream petals. [5] [6] [7]
The fruit is a green dehiscent follicle, measuring around 40 cm (16 in) or more in length and 6–9 mm (0.2–0.4 in) diameter. At maturity they turn brown and split longitudinally, releasing numerous small, hairy seeds that are dispersed by the wind. [5] [6] [7]
This species was first described in 1928 by the Czech botanist Karel Domin, who published his description in the book Bibliotheca Botanica. [3] [4]
The genus name Alstonia was raised by the Scottish botanist Robert Brown in 1811, in honour of his countryman Charles Alston. The species epithet muelleriana is in honour of the German-born Australian botanist Ferdinand von Mueller. [6]
The range of the hard milkwood is restricted to a small part of northeastern Queensland, from near Rossville to the Paluma Range N.P. north of Townsville, and also the southwestern parts of Papua New Guinea. [8]
It grows in rainforests, but is also found in drier forests and is common in regrowth or disturbed areas. [5] [7]
This species is listed by both the Queensland Department of Environment and Science and the IUCN as least concern. [1] [2] The IUCN states in its assessment that the population is stable and that no current or future threats have been identified. [2]
Agathis robusta, commonly known as Dundathu pine, kauri pine, Queensland kauri (pine), Australian kauri (pine) or smooth-barked kauri, is a coniferous tree in the family Araucariaceae. Although sometimes called a pine it is not a true pine, having leaves rather than needles. It has a disjunct distribution, occurring in eastern New Guinea and New Britain in Papua New Guinea and Queensland, Australia.
Athertonia is a monotypic genus of plants in the family Proteaceae. The sole described species is Athertonia diversifolia, commonly known as Atherton oak, athertonia, creamy silky oak or white oak. It is endemic to a small part of the Wet Tropics of Queensland, Australia. A relative of the macadamia, it has potential in horticulture and the bushfood industry.
Neolitsea dealbata, also known as white bolly gum, hairy-leaved bolly gum, or simply bolly gum, is a shrub or small tree in the laurel family Lauraceae which is native to New South Wales and Queensland in Australia.
Diploglottis harpullioides, commonly known as Babinda tamarind, is a rainforest tree in the lychee and maple family Sapindaceae which is found only in northeast Queensland, Australia.
Xanthophyllum octandrum, commonly known as Macintyre's boxwood, false jitta, yellow boxwood or sovereignwood, is a slow-growing tree in the milkwort family Polygalaceae which has the potential to reach thousands of years of age. It is endemic to coastal northeastern Queensland, Australia.
Alyxia oblongata, commonly known as the chain fruit, prickly lixy, or prickly Alyxia, is a plant in the dogbane family Apocynaceae endemic to a small part of northeastern Queensland.
Ormosia ormondii, commonly known as yellow bean, is a tree in the legume family Fabaceae which is endemic to northeastern Queensland, Australia.
Pittosporum rubiginosum, commonly known as hairy red pittosporum, is an evergreen shrub in the family Pittosporaceae which is endemic to northeastern Queensland, Australia. It was first described in 1840.
Fagraea cambagei, commonly known as porcelain fruit, pink jitta, or yellowheart, is a plant in the family Gentianaceae which is endemic to rainforested parts of coastal northeast Queensland, Australia.
Fagraea fagraeacea, commonly known as yellowheart or pink jitta, is a plant in the gentian family Gentianaceae which is native to New Guinea and Queensland.
Atractocarpus sessilis, commonly known as brown randia, is an evergreen shrub in the family Rubiaceae. It is native to both Queensland, Australia, and Papua New Guinea (PNG).
Harpullia rhyticarpa, commonly known as slender harpullia, is a plant in the family Sapindaceae which is endemic to the rainforests northeastern Queensland, Australia.
Sterculia shillinglawii, commonly known as tulip sterculia or lacewood, is a tree in the cotton and cocoa family Malvaceae, native to Papuasia and northeastern Australia.
Cupaniopsis flagelliformis, commonly known as brown tuckeroo or weeping flower tamarind, is a tree in the lychee, guaraná and maple family Sapindaceae which is endemic to eastern Australia. It is a small tree that inhabits drier or seasonal rainforests.
Gillbeea adenopetala, commonly known as Pink alder, is an evergreen tree in the largely southern hemisphere family Cunoniaceae. It was first described in 1865 and is endemic to a small part of Queensland, Australia.
Actephila foetida is a plant in the family Phyllanthaceae that is found only in a very restricted range within the Wet Tropics bioregion of Queensland, Australia. It was first described in 1927.
Aglaia ferruginea, commonly known as rusty boodyarra or rusty Aglaia, is a plant in the mahogany family Meliaceae that is native to northern Queensland, Australia. The name A. tomentosa has been misapplied to the species in the past.
Peperomia hunteriana is a plant in the pepper family Piperaceae found only in the Wet Tropics bioregion of Queensland, Australia.
Cupaniopsis foveolata, commonly known as narrow-leaved tuckeroo, white tamarind or toothed tuckeroo, is a plant in the maple and lychee family Sapindaceae found in eastern Queensland and New South Wales, Australia.
Larsenaikia ochreata, commonly known as Wenlock gardenia, scented Gardenia bush or wild Gardenia, is a plant in the coffee family Rubiaceae endemic to Queensland, Australia.
Data related to Alstonia muelleriana at Wikispecies
Media related to Alstonia muelleriana at Wikimedia Commons| Authority control databases: National |
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