Fig. 1.

Germination (mean ± s.e.) of (A–D) Actinotus leucocephalus and (E–H) Tersonia cyathiflora seeds following 6, 12, 18 and 24 months of burial in nylon mesh bags in recently burnt (solid circles) or unburnt soil (open circles), or laboratory storage at 15 °C (open triangles). Germination was assessed by incubating seeds at 20 °C in water (A,C,E,G) or smoke water (B,D,F,H) for 35 days without preheating (A,B,E,F) or following pretreatment at 70 °C for 1 h (C,D,G,H).