TY - BOOK AU - Landolt,Elias TI - Biosystematic investigations in the family of duckweeds (Lemnaceae) =: Biosystematische Untersuchungen in der Familie der Wasserlinsen (Lemnaceae) AV - QK495.L527 B56 U1 - 584/.64 19 PY - 1980///-1987 CY - Zürich PB - Institut ETH KW - Duckweeds KW - Classification N1 - Includes bibliographies; v. 1. Key to determination. Cytological variation. Amino acid composition and sugar content. Effects of nitrogen and phosphorus. Bibliography. List of studied material -- v. 2. The family of Lemnaceae, a monograph study, v. 1 -- v. 3. Biosystemic investigations in the family of duckweeds (Lemnaceae) -- v. 4. The family of Lemnaceae, a monographic study, v. 2 ER -