Beacham's guide to the endangered species of North America

v. 1. Mammals, birds, reptiles

v. 2. Amphibians, fishes, snails, mussels, and clams

v. 3. Arachnids and crustaceans, insects, lichens, fern allies, true ferns, conifers, dicots

v. 4-5. Dicots

v. 6. Dicots, monocots, glossary, organizations, indexes.