Trattinnickia rhoifolia
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Trattinnickia rhoifolia is a tree in the balsam family. It occurs in northern Brazil, the Guyanas , Venezuela , Colombia , Bolivia and Peru, as well as in Trinidad .
description
Trattinnickia rhoifolia grows as an evergreen , fast-growing tree around 20–30 meters high. The trunk diameter reaches 50-100 centimeters. There are roots or buttress roots . The rough, brown to grayish bark is cracked and a little scaly. The tree carries an aromatic resin , exudate, or oleoresin .
The alternate, stalked leaves are unpaired pinnate with 9–15 short-stalked leaflets . The leathery, rough and bare, entire-margined leaflets are ovate to obovate or elliptical. They are pointed to pointed and 8-20 centimeters long. At the base they are slightly heart-shaped to rounded. The stipules are missing.
Trattinnickia rhoifolia is dioecious diocesan . Armpit and almost terminal and multi-flowered, brownish hairy, shorter panicles are formed. The three-fold, short-stalked flowers with a double flower envelope are functionally unisexual. The three-lobed and cup-shaped calyx is hairy on the outside. The upright, outside hairy, greenish and fleshy petals are slightly more than half fused, with three lobes. The 6 stamens in two circles are short. The multi-chambered ovary is upper constant, with a very short stylus with lobed stigma . There is a discus . In the male flowers there is a reduced pistillode and in the female small staminodes.
There are small, rounded, about 1-1.5 centimeters and bare, yellow-green, composite stone fruits with a two-, dreisamigen, -lobed, bony and sculpted, hard stone core formed. The mesocarp is oily-resinous.
Taxonomy
The first description was made in 1806 as Trattinnickia rhoifolia by Carl Ludwig Willdenow in Sp Pl, ed 4, 4... 975. Synonyms are Trattinnickia rhoifolia var. Sprucei Engl. , Trattinnickia rhoifolia var. Willdenowii Engl. , Trattinnickia ryanii Didr.
The generic name is often misspelled Trattinickia with just an "n".
use
The not particularly heavy and not durable wood is known as Ulu , Caraño or Almesclão , Amescla .
The exudate is used medicinally.
literature
- Harri Lorenzi: Árvores Brasileiras. Vol. 2, Instituto Plantarum, 1998, ISBN 85-86714-07-0 , p. 58, online at StuDocu.
- Klaus Kubitzki : The Families and Genera of Vascular Plants. Vol. X: Flowering Plants Eudicots , Springer, 2011, ISBN 978-3-642-14396-0 , p. 97.
- AM Polak, HR Rypkema: Major Timer Trees of Guyana A Field Guide. Tropenbos, 1992, ISBN 90-5113-013-9 , online (PDF; 8.5 MB).
- Sonia Malik: Essential Oil Research. Springer, 2019, ISBN 978-3-030-16545-1 , pp. 118 f.
Web links
- Trattinnickia rhoifolia near Flore de Guyane (pictures).
- Trattinnickia rhoifolia at Useful Tropical Plants.