Howea belmoreana
| Howea belmoreana | ||||||||||||
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Howea belmoreana , grown in New Zealand |
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| Scientific name | ||||||||||||
| Howea belmoreana | ||||||||||||
| (C. Moore & F. Muell. ) Becc. |
Howea belmoreana is a palm species endemic to Lord Howe Island, Australia .
features
Fully grown specimens reach a trunk height of 12 m with a diameter of 15 cm. The trunk is light brown to gray, the base is slightly swollen. The trunk is densely covered with dark leaf scarring rings.
The leaf crown is 3 m wide and 2.4 m high, full and round. The leaves are 2.1 to 3 m long, the younger ones are strongly curved and form almost a semicircle. The leaf stalks are 0.9 m long and strongly curved. The leaflets are dark green and 0.9 to 1.2 m long. They stand from the rachis at a 45 ° angle, which means that the entire leaf is clearly V-shaped.
The leaf epidermis is thin-walled and smooth. The secondary cells of the stomata have only slightly thickened walls, their cell lumen is not narrowed. A palisade parenchyma is missing. There are few fibers, these are not conspicuously connected to the adaxial hypodermis of large cells.
The fruits are around 5 cm in size, egg-shaped and brown to red-brown when ripe.
Distribution and ecology
H. belmoreana is endemic to Lord Howe Island, Australia. It only occurs here on neutral or acidic soils. The species is found all over the island, but becomes more common with higher altitude, in contrast to its sister species, Howea forsteriana , which occurs mainly in the lowlands.
H. belmoreana flowers about six weeks after H. forsteriana . Male and female flowers bloom at the same time.
Systematics
Howea belmoreana was first described by C. Moore and Ferdinand von Mueller in 1870 . In 1877 the species was transferred to the Howea genus by Odoardo Beccari .
The type epithet belmoreana refers to an Australian governor Belmore.
The two sister species H. belmoreana and H. forsteriana only separated from each other after the creation of Lord Howe Island. The two species are reproductively isolated from each other. They are considered an example of sympatric speciation .
use
Howea belmoreana is one of the longest-lived houseplants among the palm trees. Young plants in particular can also tolerate little light and neglect. It can be grown outdoors in USDA Climate Zones 10 and 11.
supporting documents
- ^ A b c d e Robert Lee Riffle, Paul Craft: An Encyclopedia of Cultivated Palms , 4th edition, Timber Press, Portland 2007, ISBN 978-0-88192-558-6 , pp. 349f.
- ^ P. Barry Tomlinson, James W. Horn, Jack B. Fisher: The Anatomy of Palms - Arecaceae - Palmae . Oxford University Press, Oxford 2011, p. 232. ISBN 978-0-19-955892-6
- ↑ a b c Vincent Savolainen, Marie-Charlotte Anstett, Christian Lexer, Ian Hutton, James J. Clarkson, Maria V. Norup, Martyn P. Powell, David Springate, Nicolas Salamin, William J. Baker: Sympatric speciation in palms on an oceanic island . Science, 2006, Volume 441, pp. 210-213. doi : 10.1038 / nature04566 ; (PDF, 291 kB) ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
- ↑ Howea belmoreana in the World Checklist of Selected Plant Families , accessed June 4, 2015.
