XVI International Botanical Congess

The definition of orders and higher taxa of Ascomycota have been based mainly on morphological criteria. During the last decade molecular data have been important to define more natural entities. Especially data from ribosomal genes, such as 18S rRNA, have been used. Morphological and molecular data show congruence in most parts of the classification system, but disagree in some parts. There are few classification systems which include supraordinal taxa of Ascomycota. The ones that exist largely agree on the groups, but to a lesser extent on the names of the groups. The development of a natural ascomycete system will continue well into the next millenium.NOTE Katarina Winka is the presenting author, but I could not underline in my web browser.