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The monophyly of these genera was later supported in a 2003 phylogenetic study of the family. [6] In the Wettstein system , this family was the only one placed in the order Verticillatae. Likewise, in the Engler , Cronquist , and Kubitzki systems , the Casuarinaceae were the only family placed in the order Casuarinales.
Allocasuarina huegeliana, commonly known as rock sheoak [3] is a species of flowering plant in the family Casuarinaceae and is endemic to Western Australia. It is a dioecious tree that has its leaves reduced to scales in whorls of eight to ten, the mature fruiting cones 14–35 mm (0.55–1.38 in) long containing winged seeds (samaras) 5–7 mm (0.20–0.28 in) long.
The shrub or small tree typically grows to a height of 1.5 to 2.5 metres (5 to 8 ft) but can reach as high as 4 m (13 ft) and a width of 1 to 1.5 m (3 to 5 ft).
The genera Misophrice and Apion have also been recorded on Casuarina, but the nature of their associations is unknown. [13] Hemiptera: Casuarinicola jumping plant lice feed on sap of Casuarina. [15] Another hemipteran associated with this genus is the felt scale Choneochiton casuarinae (Eriococcidae). [16]
Allocasuarina littoralis, commonly known as black she-oak, [3] is a species of flowering plant in the family Casuarinaceae and is endemic to eastern Australia. It is dioecious, or less commonly a monoecious tree or shrub, that has its leaves reduced to scales, usually in whorls of six to eight, the mature fruiting cones 10–30 mm (0.4–1 in) long containing winged seeds 4.0–10 mm (0.2–0. ...
Allocasuarina hystricosa is a species of flowering plant in the family Casuarinaceae and is endemic to the south of Western Australia. It is a dioecious shrub with more or less erect branchlets, the leaves reduced to scales in whorls of ten to twelve, the fruiting cones 13–30 mm (0.51–1.18 in) long containing winged seeds (samaras) 4.5–9 mm (0.18–0.35 in) long.
Mature cone. Allocasuarina corniculata is a species of flowering plant in the family Casuarinaceae and is endemic to the south-west of Western Australia. It is an erect to spreading, dioecious shrub that has more or less erect branchlets, the leaves reduced to scales in whorls of six to eleven, the mature fruiting cones 8–15 mm (0.31–0.59 in) long containing winged seeds (samaras) 3–4 mm ...
Allocasuarina spinosissima is a species of flowering plant in the family Casuarinaceae and is endemic to Western Australia. It is a monoecious shrub with its leaves reduced to overlapping scales in whorls of nine to eleven, the mature fruiting cones 10–23 mm (0.39–0.91 in) long, containing winged seeds 5.5–7.0 mm (0.22–0.28 in) long.