Excerpt from The Green Algae of North America Second West, 1916, contains a system of classification of all the green algae, with characters of genera and higher divisions; it differs considerably in details from previous classifications. Attention has been given to it in cases where genera not before known in North America are now reported, but no attempt has been made to rearrange genera already known here. In gen eral, specific names have not been changed from those used in 1909 and 1912, when the change was due to the discovery of an older name than the one hitherto prevailing; nor has record been made of extensions of range. 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.