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6 Wood Discoloration

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8.5 Damage to Structural Timber Indoors 221<br />

Fig.8.20. Cellar fungi. Coniophora puteana a Fruit body. b Fruit body margin. c Fruit body<br />

detail with warts. d Strands in a false ceiling. e Strands on a steel girder. f Coniophora arida<br />

fruit body. g Coniophora olivacea fruit body (photos T. Huckfeldt) — 5 cm, --- 5 mm<br />

be differentiated at the species level by morphological and cultural characteristics<br />

(Stalpers 1978). Thus, isolations from buildings were summarized as C.<br />

puteana/ C. marmorata (Guillitte 1992). Sequencing of the rDNA-ITS separated<br />

the species (Schmidt et al. 2002b). Based on fruit-body identification, C. marmorata<br />

is rather common in southern Germany. The following description is<br />

based mainly on Huckfeldt (2003), Huckfeldt and Schmidt (2005) and Schmidt<br />

and Huckfeldt (2005).<br />

Coniophora puteana, (Brown) Cellar fungus<br />

Fruit body (Fig. 8.20a–c): annual, resupinate, light to dark brown, first whiteyellow,<br />

then brownish; indistinct, fibrous margin; to 4 mm thick, to a few<br />

decimeters wide, firmly attached, fragile when dry; warty knots up to 5 mm<br />

thick; monomitic; yellow-brown spores 9−16 × 6−9µm;<br />

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