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 Add this item to the list  Polyporus caperatus Berk.
Page number:216 
Description type:Culture description 
Description:Polyporus caperatus Berk.
Culture examined: FRI 495: Context tissue culture, Isolated from 5825 on dead wood, causing white rot.
Growth characters. - Rate of growth moderately rapid, the radius at 1 week 2.4 cm; at 2 weeks 5.8 cm; Advancing zone even, hyaline and appressed in a narrow zone. Mat white, at first appressed, farinaceous and downy, in a small area slightly raised to short cottony, translucent, after 2-3 weeks in some areas appressed or slightly raised, farinaceous, translucent; and in other areas floccose-woolly, woolly to woolly-felty, after 4-5 weeks woolly-felty, subfelty, floccose-felty, to felty. Reverse unchanged. Odour none.
Tests for extracellular oxidase positive: on gallic acid agar diffusion zones strong and no growth; on tannic acid agar diffusion zones strong to very strong, diameter 1.3 cm.; with guaiacum reaction strong.
Hyphal characters. - Advancing zone: hyphae hyaline, thin-walled, nodose-septate, branched, 1.8-4.3 µm in diameter. Aerial mycelium: (a) hyphae as in advancing zone; (b) fibre hyphae numerous, unbranched or branched, with walls thick and refractive, lumina fairly broad or narrow to almost obliterated, 1.8-3.0 µm in diameter; (c) crystals abundant. Submerged mycelium: hyphae as in advancing zone.
This fungus is characterised in culture by white and thin mat and positive tests for extra-cellular oxidase.

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