The Secret World of Lichens
- 48 pages
- 2 hours of reading
Beginner young naturalist's full colour guide to the wonderful world of lichens, what they are, how they look and what they do in the natural environment.
R Troy McMullin Books
Lichens
- 608 pages
- 22 hours of reading
An extensive illustrated guide to lichen species of North America which are also found in other parts of the world, including Scotland and Scandinavia.