Synopsis This book is designed to account for all the species and botanical varieties of plants in cultivation, together with brief directions on use, propagation and cultivation. It is a source book and record of the plant materials with addition of common names, descriptive terms and definitions, inventories of families of plants, and abundant cross-references. This volume, is intended to be useful as a handbook of ready reference, rapid aid to nomenclature and to spelling of names, help in labeling, medium of suggestions on the main or standard requirements in the cultivation of plants. It is hoped the book will contribute to the understanding and the dignity of plant-growing.