Excerpt from Supplement to Catalogue of Mesozoic and Cenozoic Plants of North America, 1919-37 Knowlton's catalogue, in spite of its comprehensive title, did not include all North American fossil plants of Mesozoic and Cenozoic age then known. It specifically excluded those from Greenland and Mexico. The Central American Republics and the Antilles were not mentioned. Knowlton further excluded many thallophytes, such as marine and fresh-water Algae, as well as the Diatomaceae. He did, however, include Fungi and the Charophyta. 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.