Excerpt from Components of Adaptive Variation in Pinus Contorta From the Inland Northwest Because of pronounced genetic heterogeneity within populations (rehfeldt 1985b; Ying and others cone Collections were conducted in a manner to assure that subsequent seedling populations would represent a large number of parental tr'ees. Thus, about 250 wind-pollinated cones, each containing about 25 viable seeds, were selected from several squirrel caches in each population. Genetic diversity was further assured by selecting a varie ty of cone morphologies, sizes, and colors from each cache. 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.