Publisher's Synopsis
Excerpt from A Monograph of the Genus Dryopteris, Vol. 1: The Tropical American Pinnatifid-Bipinnatifid Species
In earlier papers I have published a review of the species belonging to the two subgenera Lastrea and Since the publication of these papers I have received for determination or examination a large number' of specimens of species belonging to the two subgenera mentioned; several of these species were previously unknown to me, and some others were found to be undescribed. I have now, therefore, not a few additions to my earlier papers, and as my former keys consequently now are uncomplete, I give in the present work new keys to all known species of the two subgenera. In this work 280 species are dealt with; about 100 of these were treated in detail in my earlier papers. 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.