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The genera Allocasuarina was created out of a grouping of plants formerly placed in Casuarina, because of subtle but consistent differences – Casuarina species have 6 to 20 scale-like teeth in each whorl of leaves, their samaras are grey or yellowish-brown, and the bracteoles of the fruiting cones are thin, woody and extend well beyond the ...
Lawrence Alexander Sidney Johnson separated out many of those species and renamed them into the new genera of Gymnostoma in 1980 and 1982, [3] [4] Allocasuarina in 1982, [4] and Ceuthostoma in 1988, with some additional formal descriptions of new species in each other genus. [5] At the time, it was somewhat controversial.
Allocasuarina zephyrea is a species of flowering plant in the family Casuarinaceae and is endemic to Tasmania. It is a dioecious shrub that has branchlets up to 190 mm (7.5 in) long, the leaves reduced to scales in whorls of seven to nine or ten, the fruiting cones 10–25 mm (0.39–0.98 in) long containing winged seeds 4.0–5.5 mm (0.16–0. ...
Allocasuarina torulosa is slender, usually dioecious tree that typically grows to a height of 5–20 m (16–66 ft). Its branchlets are drooping, up to 140 mm (5.5 in) long, the leaves reduced to erect, scale-like teeth 0.3–0.8 mm (0.01–0.03 in) long, arranged in whorls of four or five around the branchlets.
Allocasuarina striata, commonly known as the small bull oak, [1] stalked oak-bush [2] or the tall oak-bush, is a shrub of the genus Allocasuarina native to South Australia. [ 3 ] Description
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.
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Allocasuarina thalassoscopica is a species of flowering plant in the family Casuarinaceae and is endemic to eastern Australia. It is a spreading to erect, dioecious shrub that has branchlets up to 180 mm (7.1 in) long, the leaves reduced to scales in whorls of five to seven, the fruiting cones 12–28 mm (0.47–1.10 in) long containing winged ...