Excerpt from Text-Book of Western Botany: Consisting of Coulter's Manual of the Botany of the Rocky Mountains, to Which Is Prefixed Gray's Lessons in Botany, for the Use of Schools and Colleges Between the Mississippi River and the Rocky Mountains In general, the ordinal sequence adopted by Bentham and Hooker's Genera Plantaram has been followed, but Gymno sperms have been transferred to the end of Phaenogams, and Monocotyledons and Dicotyledons subordinated to An'gio Sperms. This change has been made simply because it better expresses relationships which have long been recognized. The term Cryptogam has been discarded as the correlative of Phaenogam, and Pteridophyta (vascular Cryptogams) is used as the name of the second great series of plants. The orders and ordinal sequence of the Pteridophyta are thought best to express their relationships. Introduced plants are placed in foot-notes, that they may be separated as far as possible from our native plants, and their relation to the flora thus emphasized. 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.