What to read after Orchids of the Northeast?

Orchids! No other group of plants arouses such immediate interest. No other plants invoke such a strong desire to know more about them, and certainly no group of plants is in such desperate need of human understanding and compassion; in the northeast far too many of their kind stand poised on the brink of extinction. Orchids of the Northeast is a must for orchid enthusiasts everywhere. Along with innovative identification keys and a glossary of botanical terms, William K. Chapman includes the latest research collected on these fascinating flowers. For instance, to allow for current classification changes, three varieties of Cypripedium parviflorum—yellow lady's slippers—are listed, as well as the recently recognized species of Platanthera huronensis, and Malaxis bayardii, and the proposed Platanthera pallida. The many color photographs in Orchids of the Northeast makes this book a visual—as well as a botanical—treasure.