NOVELTY - An integrated cellulosic ethanol and biodiesel production system comprises a feed stage for receiving waste cellulose and algae cellulose streams; a hydrolysis stage; a liquefaction stage to produce a formed sugars stream; a fermentation stage to produce a raw ethanol stream; an ethanol separation stage; an algae generation stage comprising algae bioreactor(s) reacting liquefaction byproduct stream(s) with algae; and a biodiesel production stage.    USE - An integrated cellulosic ethanol and biodiesel production system.    DETAILED DESCRIPTION - An integrated cellulosic ethanol and biodiesel production system comprises:    (1) a feed stage for receiving a waste cellulose stream and an algae cellulose stream and for producing a raw cellulose stream;    (2) a hydrolysis stage coupled with the feed stage for hydrolyzing the raw cellulose stream;    (3) a liquefaction stage coupled with the hydrolysis stage and liquefying the cellulose stream to produce a formed sugars stream and liquefaction byproduct stream(s);    (4) a fermentation stage coupled with the liquefaction stage for reacting the formed sugars stream with a yeast feed in fermenter(s) to produce a raw ethanol stream;    (5) a separation stage coupled with the fermentation stage and separating ethanol from the raw ethanol stream and producing a fuel ethanol stream;    (6) an algae generation stage comprising algae bioreactor(s) and reacting the liquefaction byproduct stream(s) with algae in the algae bioreactor(s) to produce an algae stream; and    (7) a biodiesel production stage coupled with the algae generation stage for producing a biodiesel stream and the algae cellulose stream.    The feed stage comprises a hydrolysis operation configured to react the raw cellulose stream with one or more organisms comprised in one or more hydrolysis inputs to produce a hydrolyzed cellulose stream, a hydrolysis carbon dioxide stream, and a hydrolysis ethanol stream.    DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of a cellulosic ethanol production system.