Excerpt from Orchidaceae Illustrations and Studies of the Family Orchidaceae, Issuing From the Ames Botanical Laboratory North Easton, Massachusetts Characters which are to serve for generic distinction are not infrequently chosen with total disregard of specific forms through out a wide range, and this is most likely to take place in the segregations made from amphigean genera which comprise nu merous polymorphic species. In a localized flora made up in great part of vagrants which have become introduced into a country from distant, geographically distinct regions, those systematists who lack Opportunity to study in large herbaria where general and fairly complete representations are to be had of the flora of adjacent territory, and who confine themselves to the plants of Special geographical regions, are inclined to establish genera on characters which a broad knowledge of a given group would clearly show were scarcely of generic weight. 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.