Morphologies and elemental compositions of . - Annals of Botany
including prisms, raphides, styloids, druses, crystal sand, spheres and clusters. . formed by plants are silica, calcium carbonate and calcium . in cellular metabolism, and the divalent cation of calcium is . .50 mg g21 dry mass (DM) depending on the species, . Acacia robeorum, a desert shrub from north-western Australia.