Genus: 1 species; single genus.
Clades:
Austrobaileyaceae;
Magnoliales;
Angiospermae.
Region: Queensland, Australia.
Habitat: well-developed upland rainforest, wet, damp, humid, tropical canopy and low-light; understorey.
Habitat: low-sunlight and very humid conditions.
Content: essential oils in spherical ethereal oil cells.
BotanyVines; woody; lianas or vines; up to 15 m tall.
Stems: loosely twining; with straight, extending, leafy branches.
Leaves: blue-green; leathery; veined; simple; damaged by oxidation in direct sunlight.
Lack of palisade mesophyll tissue or low leaf photosynthetic rates.
Flowers: large; solitary; arranged in a spiral; pale green petals; sepals 5, yellowish-green, large, larger than the five or so green petals; rotting fish smell.
Pollination by flies. To attract pollinators, A. scandens’ flowers release a .
Fruits: apricot-coloured; tightly packed seeds, shape of chestnuts; pear or eggplant shape; up to 7 cm long, by 5 cm wide.
Propagation: vegetative reproduction
TaxonomyThe Cronquist system, of 1981, assigned the family to the order
Magnoliales, in subclass
Magnoliidae, in class Magnoliopsida .
The Thorne system (1992) placed it in the order
Magnoliales, which was assigned to superorder
Magnolianae, in subclass Magnoliideae, in class Magnoliopsida.
The Dahlgren system assigned it to the order Annonales, which was placed in superorder
Magnolianae, in subclass Magnoliideae, in class Magnoliopsida.
The Engler system, in its update of 1964, assigned it to the order
Magnoliales, which was placed in subclass Archychlamydeae in class Dicotyledoneae and in subdivision
Angiospermae.
The APG IV system, of 2016, recognise
Austrobaileyaceae, placing it in the order
Austrobaileyales.