a felled log with fungus growing on the surface.

wildlife soil nature leaf tree plant grass green woodland forest autumn fungus trunk branch felled log growing falling bark fugus fallen park thicket timber wood backwoods brake woods grove ecosystem coniferous evergreen undergrowth wilderness vegetation forestry conifer timberland forestation ground oak fir forrest woodlands wooded deciduous habitat virgin biosphere grasslands oaks trees molecular phylogenetic fungi growth grow mushrooms mosses neoproterozoic morphological biochemical genetic organisms water nutrients xylem phloem fungi armillaria rhizomorphs roots eukaryotes biosynthetic mevalonic pyrophosphate biosynthesis chloroplasts metabolites fungal enzymes