Figure 3: Seasonal variation in photosynthetic thermal tolerance for sunlit evergreen tree species from the forest of Nova Xavantina, Brazil. Species average and pooled seasonal averages of T5, T50 and T95 in Panels A, B and C respectively. The dotted grey line indicates Tmax long-term mean maximum air temperature(34.8°C) and dashed grey line represents absolute highest Tmax recorded (43.9°C) in the region. Error bars denote one standard error. Species codes: amgu =Amaioua guianensis , brru = Brosimum rubescens , chco =Cheiloclinium cognatum , hyco = Hymenaea courbaril , moap =Mouriri apiranga and teal = Tetragastris altissima