Quantitative histochemistry of oxalate in vesiculated hairs of Atriplex halimus L.

Summary A quantitative microchemical technique was devised to detect 2 to 3 g oxalate in plant materials. This technique was used to measure the molarity of oxalate in the giant vesiculated hairs covering leaves of Atriplex halimus L. Oxalate concentration in the hairs was found to be approximately 1.4 molar. This technique is much simpler and more sensitive than previously reported methods.