Duboscia macrocarpa
Duboscia macrocarpa | ||||||||||||
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Duboscia macrocarpa | ||||||||||||
Bocq. |
Duboscia macrocarpa is a tree in the mallow family from central Africa to Nigeria .
description
Duboscia macrocarpa grows as an evergreen tree up to 25-30 meters high. The trunk diameter can reach up to 120 centimeters. The trunk is corrugated and buttress roots can occur.
The simple leaves are short stalked and alternate. The short and hairy petiole is up to 7 millimeters long. The slightly leathery, egg-shaped to obovate and acuminate to acuminate leaves have entire margins to distantly serrated, they are 5-16 centimeters long and up to 8 centimeters wide. They are only slightly hairy on the upper side on the veins and mainly hairy on the underside on the veins. The veins are threefold and raised on the underside. There are small hairy and pointed stipules .
The many-flowered, hairy and slender-stalked inflorescences opposite the leaves are double- dolded . There are usually three flowers with 3 sepaloiden, hairy in the umbellules cover sheets together (Hüllchen). The small, hermaphrodite and yellowish, stalked flowers are four-fold with a double flower envelope . The up to 5–7 millimeters long, flabby and hairy sepals are boat-shaped. The hairy, glandular petals at the base are very small. There are many free stamens on a short androgynophore . The multi-chambered and hairy, upper continuous elongated ovary with a bare, short pen with frayed scar ; with short branches.
Roundish, 4–6 cm, 7–8-ribbed and hairy, woody-fibrous and multi-seeded, chambered fruits, capsule fruits that do not open are formed. The flat seeds are bare.
literature
- K. Kubitzki , C. Bayer: The Families and Genera of Vascular Plants. Vol. V: Flowering Plants Dicotyledons , Springer, 2003, ISBN 3-540-42873-9 , p. 251.
Web links
- Duboscia macrocarpa at PROTA.
- Duboscia macrocarpa at Botanic Garden Meise, The Digital Flora of Central Africa.
- Duboscia macrocarpa . In: S. Dressler, M. Schmidt, G. Zizka (Eds.): African plants - A Photo Guide. Senckenberg, Frankfurt / Main 2014.
- Duboscia macrocarpa at Useful Tropical Plants.