. Fig. 275.âPolyporus sqiiamosus on Acer Negundo. The three upper sporophores are borne on a separate piece of wood, from which a fourth has been cut off. (v. Tiibenf phot.) of the thick-walled autumn wood. (Compare with P. sistotre- moidcs, Fig. 280). The phenomena accompanying destruction of wood by this fungus are so characteristic that Conwentz"' could distinguish it quite clearly in tree-remains enclosed in amber. Brefeld succeeded by artificial culture of the spores, in raising a mycelium on which basidia were formed, at first directly, afterwards from large sporophores. Polyporus s

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. Fig. 275.âPolyporus sqiiamosus on Acer Negundo. The three upper sporophores are borne on a separate piece of wood, from which a fourth has been cut off. (v. Tiibenf phot.) of the thick-walled autumn wood. (Compare with P. sistotre- moidcs, Fig. 280). The phenomena accompanying destruction of wood by this fungus are so characteristic that Conwentz"' could distinguish it quite clearly in tree-remains enclosed in amber. Brefeld succeeded by artificial culture of the spores, in raising a mycelium on which basidia were formed, at first directly, afterwards from large sporophores. Polyporus squamosus (Huds.). (Britain and America.) ^ R. Haitig, De}' echte Hausschicamm, Berlin (Springer), lS8o. â ^Conwentz, Monographie d. baltischen Bernsteinhdume, 1890.

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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi