Hafellner, J/ Egan, RS 1981: Studies on the genus Speerschneidera. - Lichenologist13: 11-26. [RLL List # 109-26 / Rec.# 7215] Keywords: SPEERSCHNEIDERA/ SEM/ TEXAS/ LECANORACEAE/ LECANIA/ CHEMISTRY
Abstract: 2 tables. 24 figures. ["The information on morphology, ecology, development and chemistry indicate that the genus is appropriately placed in the Lecanorales close to Lecania."]