The pine and fir are coniferous trees.
The litters of coniferous trees accounted for 90% in artificial forests, but litters of broadleaf trees were 40% in natural forests.
Recent scientific studies indicate the probable existence of several resin producing coniferous trees that may account for the variations seen in the colour of amber.
Over a carpet of full-bodied coniferous trees, the jagged spine draws closer until we're looking at it vertically, finally using the glass dome to its full potential.
