Daphnandra micrantha

Daphnandra micrantha, the socketwood or Manning River socketwood is a rainforest tree in eastern Australia. It grows near streams in various types of rainforest. Restricted to the Manning River and Hastings River valleys (31° S) of northern eastern New South Wales. Also seen in ecotone areas dominated by brush box and tallowwood.

Manning River socketwood
Manning River socketwood - trunk
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Laurales
Family: Atherospermataceae
Genus: Daphnandra
Species:
D. micrantha
Binomial name
Daphnandra micrantha
Synonyms
  • Daphnandra species B

Naming and taxonomy

A member of the ancient Gondwana family Atherospermataceae. Previously considered one species, it is now published as four different types of socketwood by Richard Schodde. The generic name Daphnandra refers to a similarity of the anthers of the Bay Laurel. Greek daphne refers to the Bay Laurel, and andros from the Greek for man.[1] Micanthra from the Greek refers to small flowers. A feature of Daphnandra apatela is where larger branchlets meet the main trunk, resembling a "ball and socket" type joint. Hence the common name of socketwood for this group of trees.

Description

A small to medium-sized tree, sometimes reaching 20 metres tall and with a trunk diameter of 25 cm. The bark is fawnish cream in colour, with vertical cracks. The small branches lack the soft downy hairs of other socketwood types. Branchlets are flattened where they join the main stem.

Leaves

Leaves opposite on the stem. 7 to 17 cm long, 1 to 5 cm wide, finely toothed. Approximately 14 teeth per side. Midrib raised below the leaf, but sunken above. Five pairs of lateral veins, more evident below the leaf. Leaf stem 3 to 8 mm long.

Flowers and fruit

Small flowers form from June to October, being greenish white or pinkish green. The fruit is a woody receptacle, it splits in two, releasing hairy wind blown achenes with one seed.

Southern Angle Headed Dragon and Manning river socketwood leaves at Boorganna Nature Reserve, Australia

References
  1. Floyd, A. G. (2008). Rainforest Trees of Mainland South-eastern Australia (2nd, Revised ed.). Lismore, New South Wales: Terania Rainforest Publishing. p. 84. ISBN 978-0-958943-67-3. Retrieved 29 January 2010.
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