Английская Википедия:Allocasuarina rigida
Шаблон:Short description Шаблон:Speciesbox
Allocasuarina rigida is a species of flowering plant in the family Casuarinaceae and is endemic to eastern Australia. It is a dioecious shrub that has branchlets up to Шаблон:Cvt long, the leaves reduced to scales in whorls of seven to ten, and the fruiting cones Шаблон:Cvt long containing winged seeds Шаблон:Cvt long.
Description
Allocasuarina rigida is dioecious shrub that typically grows to a height of Шаблон:Cvt and has smooth bark. Its branchlets are more or less erect and up to Шаблон:Cvt long, the leaves reduced to scale-like teeth Шаблон:Cvt long, arranged in whorls of seven to ten around the branchlets. The sections of branchlet between the leaf whorls are Шаблон:Cvt long, Шаблон:Cvt wide. Male flowers are arranged in spikes Шаблон:Cvt long, with about 4 to 6.5 whorls per centimetre (per 0.39 in.), and often appear like a string of beads, the anthers Шаблон:Cvt long. Female cones are on a peduncle Шаблон:Cvt long, and mature cones are cylindrical to ovoid, Шаблон:Cvt long and Шаблон:Cvt in diameter, containing brown, winged seeds Шаблон:Cvt long.[1][2]
Taxonomy
This sheoak was first formally described in 1848 by Friedrich Anton Wilhelm Miquel who gave it the name Casuarina rigida in the journal, Revisio critica Casuarinarum from specimens collected near Moreton Bay.[3] In 1982, Lawrie Johnson transferred the species to Allocasuarina as A. rigida in the Journal of the Adelaide Botanic Gardens.[4][5]
In the same journal, Johnson described two subspecies of A. rigida and the names are accepted by the Australian Plant Census:
- Allocasuarina rigida subsp. exsul L.A.S.Johnson[6] has branchlet sections Шаблон:Cvt long and mature cones Шаблон:Cvt long and Шаблон:Cvt wide[7]
- Allocasuarina rigida subsp. rigida L.A.S.Johnson[8] has branchlet sections Шаблон:Cvt long and mature cones Шаблон:Cvt long and Шаблон:Cvt wide[9]
Distribution and habitat
Allocasuarina rigida grows in sandy soil on volcanic outcrops in exposed situations from the McPherson Range in south-eastern Queensland to the Gibraltar Range National Park and Ebor in north-eastern New South Wales and in disjunct populations on Mount Cooroora in south-eastern Queensland and Big Nellie Mountain near Taree in north eastern New South Wales. Subspecies exsul only occurs on Mount Cooroora and subsp. rigida occurs throughout the remainder of the range.[1][7][9]
References
External links
- Английская Википедия
- Страницы с неработающими файловыми ссылками
- Allocasuarina
- Fagales of Australia
- Flora of New South Wales
- Flora of Queensland
- Dioecious plants
- Taxa named by Friedrich Anton Wilhelm Miquel
- Plants described in 1848
- Страницы, где используется шаблон "Навигационная таблица/Телепорт"
- Страницы с телепортом
- Википедия
- Статья из Википедии
- Статья из Английской Википедии
.jpg){kind=link}