1. The sporophyte of Lemna minor cannot be definitely homologized with either a stem or a leaf, but is a shoot undifferentiated except at the basal and nodal regions. 2. The secondary root is formed ...

lacking an obvious stem or leaves. “It grows in a closed system which called raceway where there is about 30-40 cm of water on top of which it grows,” he says Easy to harvest Lemna consists of ...