Fig. 2.

The lipid phosphorus (P) (A), metabolite P (B), nucleic acid P (C), residual P (D) and inorganic P (Pi) concentrations (E) in leaves of two Banksia species, B. attenuata and B. sessilis, grown in different substrates. Values are means ± s.e. (n = 10); asterisks indicate significant differences between the two species by t-test. n.s., not significant, *P < 0.05, **P < 0.01, ***P < 0.001. Different letters indicate significant differences for the two species among substrates (P < 0.05). SLAT, sand plus laterite; SLIM, sand plus limestone.