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Cross-sections of the rachilla appendages at the base of the mature (fertile, i.e. with caryopsis) upper floret of Chasechloa madagascariensis (Vorontsova et al. 1822). (A and B) without staining; (C and D) staining with Sudan IV. Scale bars = 100 μm (A, C); 20 μm (B, D).
