In what has to have been the most caustic (and funny) voice in 1980s appropriation art, Texan Mark Flood blasted consumerist culture in collages, paintings (altered thrift-store canvases) and objects. A generous survey of these largely forgotten works, curated by Alison Gingeras, makes it seem as though Floods work is the source for every scrap of counterculture poetics that followed. The subject matter is certainly diverting, but don’t miss the canny formal brilliance of the works, which deploy doubling and elision in curious ways.