This is the eighth and concluding volume in a planned series to present a compendium of the freshwater algae, excluding the Bacillariophyceae, Cyanophyceae, Rhodophyceae and Charophyceae, reported as occurring in the southeastern United States?. An originally planned volume on the Cyanophyceae and Rhodophyceae will not be forthcoming. Parts 1 and 2 were published in 1989, Part 3 in 1990, Parts 4 and 5 in 1991, Part 6 in 1993 and Part 7 in 2000. It is important to reiterate that this series was never intended to be a revisionary work but, rather, a compendium of reported taxa to serve as a biodiversity data base for those interested in the occurrence and distribution of freshwater algae in the south-eastern United States. In that regard, caution must be taken as many of the reports included herein are represented in the literature as ?floristic lists? and are unaccompanied by figures and/or descriptions and, as a result, are impossible to confirm in respect to the accuracy of the original identifications. In most cases, keys, figures and descriptions for reported algal taxa have been included. Additionally, supportive literature citations (LIT) for each genus and distributional data (DIST), by State, for each subgeneric category are provided. Synonymy, as applicable to taxa reported from the southeastern United States, has been brought up-to- date in all cases where warranted corrections were known. Accurate illustrations of algal taxa, based upon authoritative sources, are of critical importance to the usefulness of a work such as this.