Euxylophora paraensis
| Euxylophora paraensis | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Euxylophora | ||||||||||||
| Huber | ||||||||||||
| Scientific name of the species | ||||||||||||
| Euxylophora paraensis | ||||||||||||
| Huber |
Euxylophora paraensis is a tree in the diamond family from northern Brazil . It is the only species in the genus Euxylophora .
description
Euxylophora paraensis grows as a tree up to 30 (40) meters high. The trunk diameter reaches over 80 centimeters. The brownish to grayish bark is cracked, furrowed and flakes off in larger plates.
The simple, slightly leathery leaves are short-stalked and alternate, arranged in a screw-like manner at the branch ends. The short, slightly runny petiole is up to 2–3 inches long. The leaves are obovate, lanceolate to elliptical and entire, they are 10-25 centimeters long and 5-11 centimeters wide. At the top they are rounded, truncated to indented, less often slightly pointed, pointed. They are bald on top and slightly yellowish hairy on the underside. The veins are pinnate with fine, indistinct lateral veins.
Terminal, much-branched and larger, somewhat hairy panicles , thyrses are formed. The fragrant, white-yellowish and five-fold, short-stalked flowers are hermaphrodite. The small, short and 4 millimeter long calyx is cup-shaped and trimmed with small teeth. The narrow, elongated and hairy, laid back petals are up to 2 centimeters long. There are 5 free stamens with hairy stamens and large, elongated and pointed anthers on a small, fleshy ring. The fünfkammerige, -lappige ovary has a gynobasischen, short pen with fünflappiger, club-shaped scar .
There are five-and hairy pomes formed, the individual, and clipped one to zweisamigen, bivalve fruits are about 2 centimeters. The flattened, trapezoidal and up to 1 cm large seeds are blackish and shiny, with an elongated and narrow hilum .
Taxonomy
The first description of the genus Euxylophora and the species Euxylophora paraensis was made in 1910 by Jakob Huber in Bol. Mus. Goeldi Hist. Nat. Ethnogr. Belém. 6:85.
use
The yellow, quite heavy wood is known as Yellowheart or Pau, Pao amarello , Amarello .
literature
- K. Kubitzki : The Families and Genera of Vascular Plants. Vol. X: Flowering Plants Eudicots , Springer, 2011, ISBN 978-3-642-14396-0 , p. 330.
- 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. 204 ff.
- M. Chudnoff: Tropical Timbers of the World. Agriculture Handbook 607, USDA, 1984, p. 80, limited preview in Google book search.
- J. Gérard, D. Guibal, S. Paradis, J.-C. Cerre: Tropical Timber Atlas. Éditions Quæ, 2017, ISBN 978-2-7592-2798-3 , pp. 735 ff, limited preview in Google Book Search.
Web links
- Comuncoda Técnico 247 Embrapa, 2014, on researchgate.net, ISSN 1983-0505.