DIPTEROCARPACEAE, , Gilg, 1899

KEY TO THE ANGOLAN DIPTEROCARPACEAE View in CoL

As already noted by several authors ( Bancroft 1939a, Duvigneaud 1944), the taxonomy of the African Dipterocarps, and in particular of the genus Monotes View in CoL is based mainly on leaf characteristics, since the qualitative characters of flowers and fruits show a remarkable uniformity. Given that, the key presented here is based mainly on vegetative characters.

1. Tall trees with straight trunks, buttressed, branchlets densely longitudinally channelled, leaves acuminate, androgynophore present........................ 1. Marquesia View in CoL

1. Shrubs or small trees with irregular trunks, without buttresses, branchlets more or less smooth, leaves rarely acuminate, androgynophore absent............. 2. Monotes View in CoL