Figure 6-5. Plant matter in a stalagmite from Madagascar.  A (inset): Entire particle. Field of view is 1.2 mm wide.  B (main panel): High-magnification view of part of grain in A. The polygonal cells at the top are parenchyma that could be from a leaf or the cortex of a stem. The globular cells at the bottom are epidermis. Field of view is 0.21 mm.
     Photomicrographs were taken in plane-polarized light. Anjohibe Cave, Madagascar; Stalagmite MA3; thin section MA3-18. Sample was collected by Dr. George A. Brook; celluluar identification was by Dr. John P. Shields.
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