In English, spot, drop, amorphous mass. Botanists call this a yellow mucilaginous mold, long considered a fungus. A single-celled protist organism with many heads devoid of nervous system but with learning capacity, the physarum polycephalum, used in scientific experiments. The name derives from the eponymous 1958 science fiction horror film starring Steve McQueen, (the voracious stain, terror has no form, the devouring mass).
