. Fig. iG.—Protomi/ces macrosporus. Section of petiole of At(jopodium with two swellings containing spores. Secondary cell-walls have been formed, and a collenchj-ma region lies between the two swellings, (v. Tubeuf del.) cells of the parenchyma, so that they become divided iiil" younger cells rich in protoplasm and each ,sho^ving a distinct

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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi