Template:Singh & Upreti, 1987a

• Singh, A. & Upreti, D.K. 1987. The lichen genus Pyrenula from Andaman Islands, India. Geophytology: A Journal of Palaeobotany and allied Sciences 17(1): 75–87.  
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  • RLL List # 136 / Rec.# 17336 – Recent Literature on Lichens