Summary of seed shape and surface sculpturing, species crown illumination index (CI index), and physical and chemical defence determined for 10 Macaranga species.

*Seed shape and surface sculpturing from Davies 2001 [63] and Whitmore 2008 [64].O: ovoid or subtriangular-ovoid with shallow grooves, S: spheroidal or slightly flattened with large shallow round pits, L: lenticular with shallow grooves, V: ovoid shape with coarsely verrucose (peg-like structure) surface (Figure 1).**Mean crown light index (CI) of the seedling and sapling stages (diameter size class of 0–4 cm) from Davies et al. (1998) [44]. The index, ranging from 1 to 5, scores the source (lateral and vertical light) and relative amount of light available for individual crowns [43].†Standard error among seed sources. Missing value indicates one maternal tree contributing the seeds.‡Standard error among seeds of pooled from maternal sources or seeds of one maternal source.1Previously reported as Macaranga kingii in Davies et al. 1998 and Davies and Ashton 1999.2Previously reported as Macaranga triloba in Davies et al. 1998 and Davies and Ashton 1999.