- Author: C. Leo Hitchcock, Arthur Cronquist, David Giblin, Ben Legler, Peter F Zika, Richard G Olmstead
- Language: English
- Year: 2018
- Author: C. Leo Hitchcock Arthur Cronquist
- Language: English
- Year: 1973
- Author: C. Leo Hitchcock Arthur Cronquist
- Language: English
- Year: 1976
- Author: C. Leo Hitchcock Arthur Cronquist
- Language: English
- Year: 1973