Stages of architectural development (ASD) of Dicorynia guianensis (DG) and Tachigali melinonii (TM): ASD1: saplings with un-branched main stem; ASD2: saplings with sparsely branched main stem (order 2 axes remain un-branched); ASD3: immature trees (diamonds: sequential axes; crosses: reiterated axes). For a complete description of the different ASDs, see Material and methods.