Desmids of the United States and List of American Pediastrums is a book written by Francis Wolle and published in 1884. The book is a comprehensive guide to the desmids and pediastrums found in the United States. Desmids are a type of freshwater green algae that are characterized by their distinctive symmetrical cell division. Pediastrums are also a type of freshwater green algae, but they are characterized by their flat, disc-like shape. The book is divided into two parts. The first part provides a detailed description of the desmids found in the United States. It includes information on their morphology, ecology, and distribution. The descriptions are accompanied by detailed illustrations of each species, which makes it easy to identify them. The second part of the book provides a list of American pediastrums, along with their descriptions and illustrations.The book is an important resource for anyone interested in freshwater algae, as it provides a comprehensive guide to the desmids and pediastrums found in the United States. The author, Francis Wolle, was a renowned botanist and microscopist who made significant contributions to the study of freshwater algae. His work in this book is still highly regarded today, and it remains an important reference for researchers and enthusiasts alike.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.