Clostridium phytofermentans cells (American Type Culture Collection 700394.sup.T) and all other strains of the species can ferment materials such as biomass into useful products and coproducts, such as ethanol, hydrogen and organic acids. Compositions that include Clostridium phytofermentans are also disclosed.
STATEMENT AS TO FEDERALLY SPONSORED RESEARCH
 This invention was made with Government support under Grant No. DE-FG02-02ER15330, awarded by the United States Department of Energy (DOE). The Government thus has certain rights in the invention.