Abstract
A technique for growing Marsilea aseptically is described. The effects of varying concentrations of indoleacetic acid, a-napthaleneacetic acid, and 2, 4-dichlorophenoxyacetic acid have been studied—they resemble in general those reported for other plants. Additions of adenine, guanine, or uracil have no observed effects. The effects of departures from complete nutrition and of additions of growth-promoting substances are described and discussed in relation to observed changes in leaf morphology.