Fig. 5From: Structure of cellulose in birch phloem fibres in tension wood: an X-ray nanodiffraction studyExamples of detected areas corresponding to calcium oxalate crystals in samples 4 (a), 6 (b) and 12 (c). The scattering data was selected on the specific q-scale area (1.0–1.15 Å−1), covering the calcium oxalate reflections. The scalebar is the same for all the picturesBack to article page