Excerpt from The Establishment of Varieties in Coleus by the Selection of Somatic Variations De Vries makes a most comprehensive analysis of the nature of variegation and concludes (1901, vol. I, p. 616) that the capacity for variegation is more widely distributed in the plant kingdom as a latent or semilatent character than perhaps any other character. He notes that true aurea varieties are few and are remarkably constant. Most variegated races Show rather wide fluctuations and constitute what he calls intermediate races. His scheme (1901, vol I, p. 424) of represent ing the relationship is as follows: Anomaly. I. Original species, green.. II. Half race, rarely variegated III. An equilibrium is maintained. IV. Eversporting variety, variegated. Semilatent. Active. V. Constant variety, aurea. Latent. Active. In a later publication (1913) de Vries considers that the pangens, which he assumes are directly concerned with the transmission and expression of characters, may be not only active, semilatent, and latent, but also labile. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.