The definitive guide to California's diverse array of lichen flora, with color photographs and descriptions of over 500 species Lichens are among the most color

This comprehensive guide covers everything you need to know about lichens, from their biology and ecology to their cultural significance. Lavishly illustrated a

Excerpt from A Guide to the Study of Lichens I take this opportunity to express my obligations to Miss Alice Eastwood, of the California Academy of Science, and