10(9) Cap rich chrome yellow, viscid, soon reduced to a sticky mass, easily collapsing. _Bolbitius vitellinus_ - Cap in shades of brown, never brightly coloured and if collapsing then cap elongate-cylindric and white to pale cream. 11 11(10) Spore print dull, sepia or snuff-brown. On rabbit pellets in sand dunes. _Agrocybe subpediades_ - Spore print, brighter coloured, orange/rust brown. (_Conocybe_) 12 12(11) Gill edge with irregularly fusoid cystidia with obtuse apices (lageniform). Cap viscid. _Conocybe coprophila_ - Gill edge with distinctly capitate cells resembling a glass stoppered bottle (lecythiform). Cap never viscid, often pubescent under a lens. 13 13(12) Stem covered in long hairs. 14 - Stem covered in lecythiform cells similar to those on gill edge, giving a farinaceous appearance under a lens. NEVER with long hairs. (Dung/straw mixtures). Large as in a _Cortinarius_. Spores smooth. _Conocybe intrusa_ (_C. leucopus_ has been found on manured soil in gardens; _C. antipus_ has hexagonal spores and grows on dung piles). 14(13) Stem with both long hairs and lecythiform cystidia. [Illustration] 15 - Stem with hairs and lageniform cystidia. [Illustration] 16 15(14) Spores 11-14 × 7-9µm. Taste and smell strong, of fresh meal. _Conocybe farinacea_ - Spores large, over 15 × up to 10µm. Taste and smell none or slightly acidic. _Conocybe pubescens_ (_C. subpubescens_ might be found on straw/dung mixtures, and differs in spores 11-13 × 6-8µm). 16(14) Basidia 2-spored. _Conocybe rickenii_ - Basidia 4-spored. 17 17(16) Spores ellipsoid. 18 - Spores lentiform, angular in face view. _Conocybe lenticulospora_ 18(17) Cap grey, contrasting with yellowish cream gills and pale stem. Spores 10.5-12.5 × 6-7µm. _Conocybe murinacea_ - Cap pinkish brown or tawny. 19