'Dung Mushroom'

nice shot, good find. i like him. i'm not sure : he has the cap-shape of the psilocybe semilanceata ( http://www.google.com/search?pq=google&hl=en&sugexp=kjrmc&cp=11&gs_id=1c&xhr=t&q=armillaria+ostoyae&rls=com.microsoft:nl&gs_sm=&gs_upl=&bav=on.2,or.r_gc.r_pw.,cf.osb&biw=1203&bih=600&wrapid=tljp1318965235331019&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi#um=1&hl=en&rls=com.microsoft:nl&tbm=isch&sa=1&q=psilocybe+semilanceata&oq=psilocybe&aq=1&aqi=g10&aql=1&gs_sm=c&gs_upl=22788l28498l0l31289l9l7l0l0l0l0l828l2799l2-2.3.1.0.1l7l0&bav=on.2,or.r_gc.r_pw.,cf.osb&fp=acb0c6a0e6baa20e&biw=1203&bih=600 ) but also the little pieces at the cap as some mushrooms from genus paneaolus. (page 2 - http://www.google.com/search?pq=google&hl=en&sugexp=kjrmc&cp=11&gs_id=1c&xhr=t&q=armillaria+ostoyae&rls=com.microsoft:nl&gs_sm=&gs_upl=&bav=on.2,or.r_gc.r_pw.,cf.osb&biw=1203&bih=600&wrapid=tljp1318965235331019&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi#um=1&hl=en&rls=com.microsoft:nl&tbm=isch&sa=1&q=panaeolus&oq=panaeolus&aq=f&aqi=g10&aql=1&gs_sm=e&gs_upl=50545l50742l8l51380l2l2l0l0l0l0l252l405l0.1.1l2l0&bav=on.2,or.r_gc.r_pw.,cf.osb&fp=acb0c6a0e6baa20e&biw=1203&bih=600 ). but also for both a realativ to short stem. My home-cultivation-experience with the psilocybe cubensis showed me, when i sat them to close to the window (light), they became rather little stems and bigger heads. when it was to dark/no real sunlight they became very tall stems and little caps. take a look and decide yourself. And i tend to suggest is is maybe a paneaolus. good luck