Hypholoma fasciculare (Huds. ex Fr.) Kummer syn. Geophila fasciculari (Huds. ex Fr.) Quél. syn. Naematoloma fasciculare (Huds. ex Fr.) Karst. Grünblättriger Schwefelkopf Hypholome en touffe Sulphur Tuft. Cap 2–7cm across, convex or slightly umbonate, remains of the pale yellow veil often adhering to the margin, bright sulphur-yellow tinged orange-tan towards the centre. Stem 40–100 x 5–10mm, often curved, sulphur at the apex becoming dirty brownish towards the base with a faint ring zone often made more obvious by trapped purple-brown spores. Flesh sulphur-yellow, more brownish towards the stem base. Taste very bitter, smell mushroomy. Gills sulphur-yellow becoming olivaceous, finally dark brown. Spore print purplish-brown. Cheilocystidia thin-walled, cylindric, hair-like. Pleurocystidia broadly clavate with beak-like apex. Spores oval, with pore 6–7 x 4–4.5um. Habitat in dense clusters on stumps of deciduous and coniferous tress. Season all year. Very common. Not edible very bitter -avoid. Distribution, America and Europe.