An often side-lined American abstract artist currently showing at The Phillips Collection is Joseph Marioni. The lush surfaces of his paintings explore the visceral quality of paint on canvas. He has a similarity to the Minimalist works of Brice Marden in the seventies, which the MOMA has a good collection of. He has had two interesting shows in 2011, namely at that great French exhibition space Espace de la Concret and BAM/PFA at University of California, Berkeley, entitled Abstract Now and Then, they also have an interesting exhibition in 2012 of Abstract Expressionism from their collection, click here for details. Worth checking out, exhibition ends on 29th January, 2012.