TY JOUR TI NEW DATA ON CHAROPHYTES (CHARACEAE) OF THE VOLOGDA REGION KW aquatic flora KW Chara contraria KW Chara globularis KW Chara vulgaris KW Nitella confervacea KW rare species JO Transactions of Papanin Institute for Biology of Inland Waters RAS AU Vishnyakov, V.S. AU Philippov, D.A. PY 2026 IS 0 PB Papanin Institute for Biology of Inland Waters Russian Academy of Sciences