American journal of pharmacy . Fig. 6. Longitudinal-radial section of Quillaja; a, sclerotic cells; b, medul-lary rays ; <:, bast fibres ; d, cork cells. the most marked characteristic is the fragment of large-celled sub-erous tissue, which so frequently exhibits a concentric addition, the fragments of cortical parenchyma, crossed by thenarrow remains of medullary rays, appear numerously and distinctly. Fig. 7. Longitudinal-tangential section of Quillaja ; a, sclerotic cells ; b^ bastfibres; c, crystal ; d, medullary ray. iStimS^} Scjiega, Euonymiis and Quillaja. 437 bef

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American journal of pharmacy . Fig. 6. Longitudinal-radial section of Quillaja; a, sclerotic cells; b, medul-lary rays ; <:, bast fibres ; d, cork cells. the most marked characteristic is the fragment of large-celled sub-erous tissue, which so frequently exhibits a concentric addition, the fragments of cortical parenchyma, crossed by thenarrow remains of medullary rays, appear numerously and distinctly. Fig. 7. Longitudinal-tangential section of Quillaja ; a, sclerotic cells ; b^ bastfibres; c, crystal ; d, medullary ray. iStimS^} Scjiega, Euonymiis and Quillaja. 437 before the observer. The bast cells would also serve to distinguisheuonymus from senega.

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