Table 2. Photosynthesis rates, photosynthetic phosphorus-use efficiency (PPUE), photosynthetic nitrogen-use efficiency (PNUE), foliar mass per area (LMA) and the foliar ratio of nucleic acid phosphorus (P) to organic P of Banksia attenuata and B. sessilis grown in three substrates. Values are means ± SE (n = 10); asterisks show significant differences between the two species by t test.ns not significant, * P< 0.05, ** P < 0.01,*** P < 0.001. Different letters represent significant differences for the two species among the substrates (P < 0.05). SLAT: sand plus laterite, SLIM: sand plus limestone.