Mezilaurus ita-uba
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| Mezilaurus ita-uba | ||||||||||||
| ( Meisn. ) Deaf. ex Mez |
Mezilaurus ita-uba is a tree or shrub in the laurel family from central to northwestern South America , Brazil , Colombia , Venezuela , Peru , Bolivia and Ecuador to the Guyanas .
The species name is often misspelled with Mezilaurus itauba (without a hyphen in the epithet ).
description
Mezilaurus ita-uba usually grows as a tree to over 30–40 meters high, but sometimes only as a shrub. The trunk diameter reaches over 80 centimeters. The bark is red-brown to grayish and scaly or flaky in plates.
The alternate, simple and almost bare, slightly leathery leaves are short-stalked and crowded at the ends of the branches. The somewhat hairy petiole is up to 3.5 inches long. The entire-edged leaves are ovate to elliptical or obovate, spatulate. At the top they are rounded to pointed, pointed, less often indented. They are about 6–19 inches long and 2.5–8.5 inches wide. The leaves are underneath, inconspicuous, somewhat glandular dotted.
Axillary, rather narrow and up to 15 centimeters long, double grapes ( Dibotroyd ) are formed with golden groups. A very small, sloping bract is formed on the side branches and on the flower stalks . The stalked, very small, yellowish-green, up to 2.5 millimeters large, threefold and hermaphroditic flowers have a simple flower envelope . The cup-shaped perianth is hairy, with 6 small tips, lobes. The free, very short and hairy 3 stamens are almost sessile and there are sometimes 1–2 hairy staminodes. The bald ovary , with a short stylus with a cephalic scar , is on top.
The egg-shaped to ellipsoidal, bare fruits, berries , with constant, small perianth ( fruit cups ) are up to 2.5–3 centimeters long. They contain a large seed.
Taxonomy
The first description of Basionyms Acrodiclidium ita-uba (hyphenated in epithet) was in 1864 by Carl Meissner in AP de Candolle, Prodr. 15 (1): 86. The division into the genus Mezilaurus took place in 1892 by Carl Christian Mez after Paul Hermann Wilhelm Taubert in Arbeit Königl. Bot. Garden Breslau 1: 112. Some synonyms are known.
use
The fruits should be edible. The bark is used medicinally and an essential oil is extracted from it.
The very heavy wood is durable, but difficult to treat. It is known as Itaúba .
literature
- K. Kubitzki , Jens G. Rohwer , Volker Bittrich: The Families and Genera of Vascular Plants. Vol. II: Flowering Plants Dicotyledons , Springer, 1993, ISBN 3-540-55509-9 , p. 384.
- Flávio M. Alves: Phylogenetic analysis of the Neotropical genus Mezilaurus and reestablishment of Clinostemon (Lauraceae) Kuhlm. & Samp. In: Taxon. 62 (2), 2013, doi: 10.12705 / 622.5 , dissertation, Universidade de São Paulo, 2011, on pp. 98–118 u. a., online (PDF) at researchgate.net.
- J. Gérard, D. Guibal, S. Paradis, J.-C. Cerre: Tropical Timber Atlas. Éditions Quæ, 2017, ISBN 978-2-7592-2798-3 , p. 426 ff, limited preview in the Google book search.
- Carlos Toledo Rizzini: Árvores e madeiras úteis do Brasil: manual de dendrologia brasileira. 2ª Edição, 8ª Reimpressão, Blucher, 2019, ISBN 978-85-212-0051-2 , p. 64 ff.
- Harri Lorenzi: Árvores Brasileiras. Vol. 2, Instituto Plantarum, 1998, ISBN 85-86714-07-0 , p. 124, online at StuDocu.
Web links
- Mezilaurus itauba at Useful Tropical Plants.
Individual evidence
- ^ Mezilaurus ita-uba at KEW Science.