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Telopea Vol. 6(4): 1996 
In Kingia (Figs 3a, 4b) and Baxteria (Figs 2h, 5a), spherical (druse-like) silica bodies 
with a rugose surface are present in the leaf epidermal cells, generally one per cell. 
These were reported by Fahn (1954) as druses (clustered crystals of calcium oxalate). 
Fig. 3. Leaf anatomy, a, Kingia australis: leaf surface, with silica bodies (si) in epidermal cells, and 
paracytic/tetracytic stomata; b, Baxteria australis: leaf TS; c, Calectasia cyanca: leaf surface, with 
branched hairs; d, Chamaexcros serra: leaf TS; e, Dasypogon bromeliifulius: leaf epidennis TS, with 
silica sand (si); f, Xanthorrhoca australis: leaf epidermis and outer mesophyll TS, with substomatal 
cells (arrowed), bs = bundle sheath, s = sclerenchyma. Scale bars = 50pm. 
