Maas has identified and named about two hundred fifty plants from the Burmanniaceae, the Costus Family (Costaceae), the Gentian Family (Gentianaceae), the Bloodwort Family (Haemodoraceae), the Banana Family (Musaceae), the Olacaceae, the Triuridaceae, and the Ginger Family (Zingiberaceae).
Rainer Maria Rilke | Carl Maria von Weber | Santa Maria | Maria Callas | Santa Maria Capua Vetere | Johannes Vermeer | Maria | Maria Theresa | Henrietta Maria of France | José María Aznar | Johannes Kepler | Johannes Gutenberg | Maria Muldaur | Maria Bethânia | Carlo Maria Giulini | Basilica di Santa Maria Maggiore | Ave Maria | Santa Maria, Bulacan | Maria Theresa of Austria | Maria Edgeworth | Johannes Peter Müller | Maria Montessori | María Conchita Alonso | Johannes Ockeghem | Erich Maria Remarque | Maria João | Maria Cantwell | Johannes Rau | Stephen Paulus | Rainer Maria Latzke |