Английская Википедия:Alstonia muelleriana

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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.

Description

Alstonia muelleriana is an evergreen tree growing to between Шаблон:Cvt in height.Шаблон:R The leaves are simple and produced in whorls of three or four. They measure up to Шаблон:Cvt and are attached to the twigs by a petiole about Шаблон:Cvt long.Шаблон:R They are softly hairy on both sides (less so on the top) and have up to 18 lateral veins either side of the midrib.Шаблон:R

The inflorescences are terminal or axillary panicles up to Шаблон:Cvt long.Шаблон:R The small flowers are about Шаблон:Cvt diameter and are 5-merous, with five green sepals and five white/cream petals.Шаблон:R

The fruit is a green dehiscent follicle, measuring around Шаблон:Cvt or more in length and Шаблон:Cvt diameter. At maturity they turn brown and split longitudinally, releasing numerous small, hairy seeds that are dispersed by the wind.Шаблон:R

Taxonomy

This species was first described in 1928 by the Czech botanist Karel Domin, who published his description in the book Bibliotheca Botanica.Шаблон:R

Etymology

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.Шаблон:R

Distribution and habitat

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.Шаблон:R

It grows in rainforests, but is also found in drier forests and is common in regrowth or disturbed areas.Шаблон:R

Conservation

This species is listed by both the Queensland Department of Environment and Science and the IUCN as least concern.Шаблон:R The IUCN states in its assessment that the population is stable and that no current or future threats have been identified.Шаблон:R

Gallery

• Small tree

  Small tree

• Foliage

  Foliage

• Foliage

  Foliage

• Foliage and unripe fruit

  Foliage and unripe fruit

External links

• Шаблон:Wikispecies-inline
• Шаблон:Commons category-inline
• View a map of historical sightings of this species at the Australasian Virtual Herbarium
• View observations of this species on iNaturalist
• View images of this species on Flickriver