Contribution to knowledge of the charophytes (Charales) of Vojvodina (Serbia) – 20 years after the first review

This paper summarises known data regarding floristic richness, distribution and habitat preferences
of the charophyte algae (Charales) in the region of Vojvodina (Serbia). The historical records were
collected from all available literature and herbarium data on charophytes in Vojvodina from the
beginning of charophyte research in the 19th century to the present day. Moreover, detailed field
investigations were carried out in the period from 2012 to 2014. The last study summarising
knowledge about the distribution and ecology of charophytes (Charales) in Vojvodina was done in
1995, and nine species were listed therein. At the present time, 20 years later, 11 more species are
known. Altogether, charophytes are represented in the flora of Vojvodina with 20 species, belonging
to four genera: Chara, Nitellopsis, Nitella and Tolypella. All data were georeferenced and species
distribution maps are given. Concerning habitat preferences, charophytes of Vojvodina are mainly
found in three types of habitats, namely puddles and ruts in river floodplains, different kinds of
excavation pits and periodically dredged canals. Most of the known localities are in the protected
areas of Vojvodina.