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Page number:264 
Description type:Culture description 
Description:Fomes rufolaccatus Bose (Pl. IV & Pl. IX, 30) Key Pattern: 2 1 2 1 8 1 2 2 3 2 2
GROWTH CHARACTERS.-Growth slow, 2 cm in 1 week. Advancing zone hyaline, even, appressed. Mat white in the major portions, hyaline in some areas, cottony, surrounding the inoculum, farinaceous in some areas. Reverse unchanged. Odour sweet.
Tests for extracellular oxidase negative; on gallic and tannic acid agars, diffusion zones nil; growth 1.0-1.5 cm on former and 0.5-0.8 cm on latter, guaiacum reaction nil.
HYPHAL CHARACTERS.-Advancing zone: hyphae hyaline, thin-walled, branched, with frequent clamp connections, 1.5-5.2 µm diameter. Aerial mycelium: (a) hyphae as in advancing zone; slightly thick-walled, 1.5-3.8 µm diameter; (b) fibre hyphae hyaline, thick-walled, unbranched, aseptate, usually with obliterated lumen and refractive walls, 1.5-3.0 µm diameter; (c) chlamydospores rarely formed, globose, thinto slightly thick-walled, 7.0-l0.0 µm diameter. Submerged mycelium: (a) same as in advancing zone; (b) some hyphae thin-walled, branched with shining oily contents, 1.5-2.8 µm diameter; (c) chlamydospores as in aerial mycelium.
CULTURE EXAMINED: FRI: 826: Context, isolated from 7986 on Abies pindrow Royle, causing brown rot.
F. rufolaccatus and F. pinicola are very close in the sporophore, in form, texture and shiny laccate surface but are distinguished by the size of pores, which is 1-2 per mm in the former and 4-5 per mm in the latter (Bakshi, 1969). In culture, faster growth rate and formation of fruit body distinguish F. pinicola from F. rufolaccatus.
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