. Fig. 262. — Poli/porus igniarius. Causiug death of a White Aider plantation at Petneu, Stanzer Thai, Tyrol. The stems bear sporophores, and die from above downwards, (v. Tubeuf phot.) appearance of yellowish longitudinal bands (not white as with Sterenm ), and extends gradually till the wood becomes uniformly yellow. The mycelium causes the inner layers of the cell-walls to swell gelatinously without previous transfor- mation into cellulose, and finally to dissolve out leaving the middle lamellae longest intact.

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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi