He is particularly engaged in research of mainly African species from the Composite and the Palm families .
Since 1995 , Beentje has been a researcher at the herbarium of the Royal Botanic Gardens , Kew .
Beentje is particularly engaged in research of mainly African species from the Composite and the Palm families .
Since 1995 , Beentje has been a researcher at the herbarium of the Royal Botanic Gardens , Kew .