Figure 6

Crystals in the stem and leaf cross-sections of Nerium oleander . (A, B) Druse crystals in the cortex of the stem, (C) Druse and prismatic crystals in the cortex of the stem, (D) Druse crystals in leaf mesophyll cells, (E) Druse crystals around the midrib, (F) Prismatic crystals in leaf mesophyll cells. (Dc: Druse crystals; Pc: Prismatic crystals).