W. S. G. Maass

1929

• Erioderma pedicellatum in North America
• Lichen substances
• Moelleropsis (Lecanoriales) as a component of Erioderma habitats in Atlantic Canada
• New observations on the distribution and ecology of Cavernularia hultenii in Eastern North America
• Pulvinamide and possible biosynthetic relationships with pulvinic acid
• The phenolic constituents of Peltigera aphthosa