Plant physiology is only one of many disciplines in botany. It focuses on examining the mechanisms that govern internal biological processes in plant cells. Plant physiology explains how plants ...

When plant roots are injured—by insects, for example—the pressure inside the root drops, and a pressure wave spreads rapidly ...

THE botanical survey of a country demands a good deal from the men who undertake it, and one source of confusion now apparent in the many and various attempts being made in many and various parts of ...

THE first edition of this dictionary was published in 1920. Nine years later a second edition appears. Clearly the scientific workers for whom it was compiled have found the book useful. A Dictionary ...