Grassbase

GrassBase - The Online World Grass Flora

Descriptions

W.D. Clayton, M.S. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

References on how to use DELTA

Dallwitz, M. J. (1980). A general system for coding taxonomic descriptions. Taxon 29, 41–46.

Dallwitz, M. J., Paine, T. A., and Zurcher, E. J. (1993 onwards). User's Guide to the DELTA System: a General System for Processing Taxonomic Descriptions. 4th edition. http://delta-intkey.com/

Dallwitz, M. J., Paine, T. A., and Zurcher, E. J. (1995 onwards). User's Guide to Intkey: a Program for Interactive Identification and Information Retrieval. 1st edition.http://delta-intkey.com/

Dallwitz, M. J., Paine, T. A. and Zurcher, E. J. (1999 onwards). User's Guide to the DELTA Editor.http://delta-intkey.com/

Dallwitz, M. J., Paine, T. A. and Zurcher, E. J. (2000 onwards). Principles of interactive keys.http://delta-intkey.com/