Some more of the Wurzelatlas (1960-2002) of Lore Kutschera and Erwin Lichtenegger has been digitized, this time trees. And as before, I've inverted two of them just for fun. Behold the upstairs/downstairs of Pinus silvestris (Scottish pine), Quercus robur (common oak), Pseudotsuga menziesii (Douglas fir), Betula pendula (silver birch), Picea abes (Norway spruce), Alnus glutinosa (common alder), Populus nigra (black poplar) and - right side up this time - Pinus silvestris.
