The needs of different organisations vary considerably, but it seems that most botanical databases record information related principally to politically defined countries. The same can be said for storage of specimens in herbaria, and for citation of specimens in taxonomic revisions. However, political countries vary greatly in size, from less than one square kilometre (Vatican City) to over 22 million square kilometres covering one sixth of the worlds surface area (U.S.S.R.). Furthermore, many of them include physically remote parts, particularly islands, and nearly all traditional continental boundaries are traversed by political countries. A purely political geographical system cannot, therefore, be used to meet the needs of botanists who want more biologically based countries, regions and continents for recording botanical distributions or arranging specimens.
Mendeley saves you time finding and organizing research
Choose a citation style from the tabs below