Lichens have the capability to dissolve granite. They are very colorful; oranges, yellows, greens, blacks and whites adorn trees, bedrock and even gravestones. This field guide spotlights 120 species, shown in color photos with natural history text.

Learn to identify ferns in the North Woods

Ferns and allies are a surprisingly diverse group with a fascinating natural history. Some ferns are as tiny as golf tees, and others may tower to head height. Horsetail stems contain so much abrasive silica that they can be used to scour pots Did you know that the spores from certain clubmosses are highly explosive and were used in creating flashes to light photos taken in the 1800s? This interesting addition to the Naturalist Series covers all 86 species of ferns, horsetails, spikemosses, quillworts, and clubmosses found in the...