Full video: https://www.youtube.com/watch?v=GWZ4Cp_5Wz4 My references: Lu B. (1965). “The role of light in fructification of the basidiomycete Cyathus stercoreus”. American Journal of Botany. 52 (5): 432–7. doi:10.2307/2440258. JSTOR 2440258. Brodie (1975), pp. 57–8. Brodie (1975), [More]