Late in succession when a high forest canopy has developed and species can grow at different levels below the canopy. At the mid-successional stage before the canopy has fully developed. Where mycorrhizal associations allow the exploitation of soil nutrients. It cannot decompose. It builds up under water-logged conditions.
Antibiotic properties are always present.
It only accumulates under acidic conditions. It consists only of moss remains. Atmospheric pressure is low in Taheti. Upwelling of ocean water occurs off the Peruvian coast. There is an increase in oceanic surface temperatures from the South American Pacific coast to waters off northern Australia-Indonesia.