1. Landolt E (1986) The family of Lemnaceae—a monographic study: Vol 1: morphology, karyology, ecology, geographic distribution, systematic position, nomenclature, descriptions. Veroff Geobot Inst ETH, Stiftung Rubel, Zurich, pp 417–435
2. Kuehdorf K, Appenroth KJ (2012) Influence of salinity and high temperature on turion formation in the duckweed Spirodela polyrhiza. Aquat Bot 97:69–72
3. Landolt E, Kandeler R (1987) The family of Lemnaceae—a monographic study: Vol 2: Phytochemistry, physiology, application, and bibliography. Veroff Geobot Inst ETH, Stiftung Rubel, Zurich, pp 65–69
4. Tillberg E, Holmvall M, Ericsson T (1979) Growth cycles in Lemna gibba cultures and their effects on growth rate and ultrastructure. Physiol Plant 46:5–12
5. Chang SM, Yang CC, Sung SC (1977) The cultivation and the nutritional value of Lemnaceae. Bull Inst Chem Acad Sin 24:19–30