Computerized key of grass grains of the mediterranean basin

• Mordechai E. Kislev ^[1] ; Yoel Melamed ^[1] ; Orit Simchoni ^[1] ; Mina Marmorstein ^[1]
  1. [1] Bar-Ilan University

     Bar-Ilan University

     Israel

     
• Localización: Lagascalia, ISSN 0210-7708, Vol. 19, Nº 1-2, 1997, págs. 289-294
• Idioma: español
• Enlaces
  • Texto completo (pdf)
• Resumen

  • The Computerized Key of Grass Grains helps researchers to identify easily and definitively grains of the Grarnineae species that grow in the Mediterranean basin. Archaeobotanists, ecologists, taxonomists and agronomists will find the Key useful. Its application simply requires measurement of grain dimensions - preferably of a number of grains - and description of several of its features. When an unknown grain is measured and described and the information is fed into the computer, all possible species whose dimension ranges and physical features are compatible with the measured grain appear on the screen. It is advised, in practice, to modify grain dimensions by 20%, thereby decreasing the sensitivity of the Key and obtaining a larger variety of possible candidates. Then, with the aid of image files of various grains, a visual selection of the candidates can be carried out. The fi-nal identification of the precise species is made by comparison to a good reference collection. We plan to continue incorporating all new data accumulated in our laboratory and to release updated and expanded versions of the Key every two years or so.