Fruit bodies of this genus are generally found growing on wood, on dead stumps, trunks, fallen branches, roots and on the ground under trees, apparently arising from buried wood. Cap leathery in texture, semi-circular, fan-shaped, infundibuliform or pseudoinfundibuliform; closely growing fruit bodies becoming confluent. Upper surface of the cap ornamented with radiating sharply edged ridges which, in some species, are obscured by a thick tomentum. Hymenial surface irregularly folded; stipe lateral or eccentric, well developed, or reduced to a basal tubercle, tomentose; hyphae are of two or three kinds: generative hyphae, either thin-walled, hyaline, branched or thick-walled with lumina often obliterated, subhyaline, less freely branched; and skeletal hyphae, very thick-walled with lumina obliterated, hyaline, subhyaline or pale brown, unbranched, lacking clamp-connections, and narrow; binding hyphae thick-walled, with numerous short branches, lacking clamp-connections; cystidia occasionally present as apically encrusted metuloids of varying shapes from clavate, lanceolate to subglobose. Gloeocystidia thin-walled, elongated, deeply staining, frequently with a swollen base and a narrow neck; basidia clavate, usually four-spored; spores thin-walled, hyaline, non-amyloid, varying in shape from broadly elliptical to subglobose, narrower elliptical to subcylindrical, or broadly elliptical to elliptical.
KeywordsFruit Body Narrow Neck Generative Hypha Skeletal Hypha Spore Print
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