TY  - SER
AU  - Witt,Jean
AU  - Pries,Bob
ED  - Species Iris Group of North America.
TI  - SIGNA checklist
PY  - 1999///
CY  - [S.l.]
PB  - SIGNA
KW  - Irises (Plants)
KW  - Iridaceae
KW  - Classification
KW  - Nomenclature
KW  - Varieties
N1  - "Compiled ... for the Species Iris Group of North America."; Includes bibliographical references; pt. 1. Alphabetical list of Iris species / compiled by Jean Witt -- pt. 2. Alphabetical cultivar list of variations and hybrids of Iris species / compiled by Bob Pries and Jean Witt
ER  -