Henssen, A 1963: The North America species of Massalongia and generic relationships. - Canad. Jour. Bot.41: 1331-1346. [RLL List # 48 / Rec.# 8309] Keywords: MASSALONGIA/ NEW TAXA/ NORTH AMERICA
Abstract: 20 fig. [New: M. microphylliza (Nyl. ex Hasse) comb. nov.]