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FABACEAE: Pterocarpus angolensis

Pterocarpus has remarkable fruits: anemochory, dispersal by means of barbed fruits and "Bodenroller" (winged fruits rolling along the ground), a triple strategy. The fruits are enclosed by a flat, dry involucre with a large surface and a relatively high weight. The spiny centre helps the fruit to stick to an animal (epizoochoric dispersal), the arrangement of the wings allows a dispersal by wind currents at the ground. Pterocarpus occurs in the savannah in the south of Africa.



© Peter v. Sengbusch - b-online@botanik.uni-hamburg.de