New data on the syntaxonomic diversity of ponds vegetation in the Saratov region

The article provides new information about the syntaxonomic diversity of the aquatic vegetation of ponds in the Saratov region. Our studies were carried out in the 2012-2014 years in 15 districts of the Saratov region. The study of ponds vegetation was carried out through detailed study of a block-with the detailed description of aquatic vegetation, in accordance with common practice in the gidrobotanical methods. During the period of the study made more than 3000 gidrobotanical descriptions. Classification of plant communities was based on dominant-determinantnogo approach to the selection of aquatic vegetation. Classification of the new Association for the area was based on the comparison of our data with data Shishkina E.S. The community of 23 new associations are described. The prodromus of aquatic vegetation taking into account the new information is presented. The new association of formations Ceratophyllum submersum, Ceratophyllum tanaiticum, Batrachium trichophyllum, Potamogeton crispus and Najas major are described. New information about one formation - Caulinia minor - is presented. Talking about the full identification of syntaxonomic diversity of aquatic vegetation of ponds of the Saratov region is premature. It is necessary to continue research on the vegetation of these interesting objects, especially in the far Saratov districts, where are many brackish ponds, vegetation which is significantly different from fresh pond vegetation and fresh water.