1. Ahti T (2000) Cladoniaceae. Flora neotropica monograph 78. The New York Botanical Garden Press. New York.
2. Asahina Y (1936 & 1938) Mikrochemischer Nachweis der Flechtenstoffe I-XI. Journal of Japanese Botany 12: 513–525; 859–872; 14: 39–44, 244–250, 318–323, 650–652, 767–773
3. Awasthi DD (2000) Methodology for lichen taxonomy. In: A handbook of lichens. Bishen Singh Mahendra Pal Singh, Dehra Dun
4. Culberson CF, Ammann K (1979) Standardmethode zur Dünnschichtchromatographie von Flechtensubstanzen. Herzogia 5:1–24
5. Divakar PK, Upreti DK (2005) Parmelioid lichens in India. Bishen Singh Mahendra Pal Singh, Dehradun