Fig. 1: Morphological features of “Sheba” at different ages.

(a) ancient seed prior to planting (b) developing seed at 5 weeks showing epicotyl and developing cotyledons covered by seed coat (c) seedling (6 months) (d) peeling bark (12 years) (e) leaves showing fine hairs (12 years) (f) mature tree (12 years). Permission for the use of pictures shown in Fig. 1 (a) and (c-f) was provided by Mr Guy Eisner and for Fig. 1 (b) by Dr Elaine Solowey.