This report is a bibliography of papers pertaining to algae found in the arid southwestern United States. Also included are some related papers that pertain to the habitats where the algae occur. Following each reference is an annotation describing the contents of the paper. The annotation, in most cases, consists of the author's abstract. Sometimes we have written an abstract, particularly for long review papers and books. The report is organized by state (California, Nevada, Utah, etc.) and papers on algae are separated from related papers on their habitat. Keywords are included for each paper and the bibliography is set up on microcomputer disk for searching by these keywords.