Athertonia diversifolia
| Athertonia diversifolia | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Athertonia | ||||||||||||
| LASJohnson & BGBriggs | ||||||||||||
| Scientific name of the species | ||||||||||||
| Athertonia diversifolia | ||||||||||||
| ( CTWhite ) LASJohnson & BGBriggs |
Athertonia diversifolia is a tree in the silver tree family from northeastern Australia . It is the only species in the genus Athertonia .
description
Athertonia diversifolia grows as an evergreen tree up to 30 meters high. The branches are rusty and hairy.
The simple, short-stalked leaves are alternate and dimorphic . The leaf stalk is up to 3 inches long. The leaves are ovate, lanceolate to obovate, lanceolate and slightly rusty hairy to glabrous. The young leaves are whole and sawn, the middle-aged ones are lobed to split and sawn with pointed to rounded lobes, the older, pointed to pointed or rounded ones are again whole and sawn or pointed to whole-margined. The middle-aged leaves are up to 80 centimeters long and 35 centimeters wide, the older ones up to 37 centimeters long and 13 centimeters wide. Before the leaves fall off, they turn orange and then black.
The flowers appear in pairs in axillary or terminal and astblütigen, ramifloren, often hanging, traubigen and cylindrical long, shortly rusty hairy, stalked inflorescences to 34 centimeters. The hermaphroditic and short-stalked, cream-colored to greenish, four-fold, fragrant flowers have a simple flower envelope . There are small bracts . The 4 short stamens are attached inside, on top of the more or less rusty hairy, up to 2 centimeters long, 4 linear, scalloped tepals . The pollen is emptied while the flower is still closed and the stamens then roll back with the opening tepals (secondary pollen presentation). The upper ovary is bare, with a long stylus with an ellipsoidal stylus head (pollen presenter) with the scar at the tip. There are 4 nectar glands.
There are bluish to violettliche, some "frosted" until 2.5-4 centimeter drupes formed. The thick-shelled, hard and somewhat flattened stone core (nut) is pitted.
Taxonomy
The first description of Basionyms Helicia diversifolia was made in 1918 by Cyril Tenison White in Bot. Bull. Dept. Agric. Queensland 20:18. The division into the newly established genus Athertonia took place in 1975 by Lawrence Alexander Sidney Johnson and Barbara Gillian Briggs in Bot. J. Linn. Soc. 70: 176. Another synonym is Hicksbeachia diversifolia (CTWhite) Sleumer .
use
The seeds or kernels are edible and taste similar to macadamia nuts .
literature
- Flora of Australia. Vol. 16: Elaeagnaceae, Proteaceae 1 , ABRS, 1995, ISBN 0-643-05692-0 , online (PDF; 42.5 MB).
- Morris Lake: Australian Rainforest Woods. CSIRO, 2015, ISBN 978-1-4863-0179-9 , p. 36.
Web links
- Athertonia diversifolia (PDF) at Australian National Botanic Gardens (illustration).
- Athertonia diversifolia at Useful Tropical Plants.
- Atherton Oak Nuts at edibleculture.blogspot.com, May 3, 2019.
Individual evidence
- ↑ Atherton Oak - The Queen of Nuts at RFCA Archives.