Raphides in the Uncalcified Siphonous Green Seaweed, Codium minus (Schmidt) P. C. Silva
Figure 2
Energy dispersive X-ray spectrum (EDS) of a needle (a) and stub (b). Emission intensity (counts) is plotted versus energy (keV) characteristic for various elements (Al: aluminum; C: carbon; Ca: calcium; Cu: copper; O: oxygen; S: sulfur).
