This fourth revision of M. J. Wynne's "Checklist" is an exhaustively prepared and updated compilation of the taxa of benthic marine algae, or seaweeds, currently recognized in the broad area of the tropical and subtropical Western Atlantic. Thus, this checklist covers the region from the warm temperate eastern United States (Cape Hatteras of North Carolina) to southern Brazil, which corresponds to the same domain as the 1960 algal flora published by W. R. Taylor. This fourth revision of the checklist includes a total of 1,553 species of benthic marine algae: 215 members of the Ochorophyta (Pelagophyceae Phaeophyceae, and Xanthophyceae), 1,014 Rhodophyceae, and 324 Chlorophyeae. When 175 infraspecific taxa are included, the total tally of current names is 1,728. Taxonomic synonyms are also included andare listed in brackets after the current names. There have been many molecular-based phylogenetic studies in recent years, and their impact on classification has been incorporated into the present system in the various groups. There are 774 notes in regard to specific points related to nomenclatural issues, new records, new taxa, and other pertinent information. This publication includes an extensive bibliography of pertinent literature primarily for the period following the publication of the third revision of the checklist in 2011. This checklist includes a table listing new references by geographic region (country or coastal states of the Southeastern USA). This work will be a useful and timely resource to workers on marine algae not only of the western Atlantic but also on a global perspective because of its synthesis of recent literature and its presentation of the most modern concepts of algal classification.

This "third revision" of M.J. Wynne's "Checklist" is a rigorously prepared and updated compilation of the taxa of benthic marine algae, or seaweeds, currently recognized as occurring in the broad area of the tropical and subtropical Western Atlantic Ocean. Thus, the checklist covers the region from the warm temperate eastern United States to southern Brazil, which is the same domain as the 1960 algal flora of W.R. Taylor. It includes a total of 1,393 species of benthic marine algae: 905 red algae, 175 brown algae, and 313 green algae. When the 185 infraspecific taxa are included, the total tally of current names is 1,578. Taxonomic synonyms are also included and are listed in brackets after the current names. The latest proposals on higher and lower hierarchical levels of systematic relationships are followed, reflecting the often dramatic changes in our concepts brought about by recent molecular-based phylogenetic studies. There are also 563 notes in regard to nomenclature and distribution for many of the taxa treated. This publication includes an extensive bibliography of pertinent literature for the period following the publication of the second revision of the checklist in 2005. The checklist includes a table listing new references by geographic region (country or coastal states of the southeastern USA). This work will be a useful and timely resource to workers on marine algae not only of the Western Atlantic but also on a global perspective because of its synthesis of recent literature and presentation of the most modern classification concepts.

This fifth revision of M. J. Wynne's "Checklist" is an exhaustively prepared and updated compilation of the taxa of benthic marine algae, or seaweeds, currently recognized in the broad area of the tropical and subtropical Western Atlantic. Thus, this checklist covers the region from the warm temperate eastern United States (Cape Hatteras of North Carolina). Bermuda, the Caribbean, the Gulf of Mexico, eastern Central America, Colombia, Venezuela, to southern Brazil, which corresponds to the same domain as the 1960 algal flora published by W. R. Taylor. This fifth revision of the checklist includes a total of 1,707 species of benthic marine algae: 230 members of the Ochrophyta (Pelagophyceae Phaeophyceae, and Xanthophyceae), 1,131 Rhodophyceae, and 346 Chlorophyceae. When 156 infraspecific taxa are included, the total tally of current names is 1,863. Taxonomic synonyms are also included and are listed in brackets after the current names. There have been many molecular-based phylogenetic studies in recent years, and their impact on classification has been incorporated into the present system in the various groups. There are 565 notes in regard to specific points related to nomenclatural issues, new records, new taxa, and other pertinent information. This publication includes an extensive bibliography of pertinent literature primarily for the period following the publication of the fourth revision of the checklist in 2017. This checklist includes a table listing new references by geographic region (country or coastal states of the Southeastern USA). This work will be a useful and timely resource to workers on marine algae not only of the Western Atlantic but also on a global perspective because of its synthesis of recent literature and its presentation of the most modern concepts of algal classification.

Wynne''s "Checklist revision" is a compilation of the taxa of benthic marine algae occurring in the broad area of the tropical and subtropical Western Atlantic Ocean. It thus covers the region from North Carolina to southern Brazil, which is the same domain as the 1960 flora of W. R. Taylor. It includes a total of 1,227 species of benthic marine algae: 763 species of red algae, 168 species of brown algae, and 296 species of green algae. There are also Notes in regard to specific information for some of the taxa treated, where appropriate. This publication includes an extensive bibliography of pertinent literature for the period following the publication of the first checklist in 1986. The Checklist includes a Table of geographic regions (countries in the region covered and coastal States of the southeastern USA) listing the literature. Five figures of the coastal regions treated are also provided.