Bibliography

Abeywickrama, B. A.: A provisional check list of the flowering plants of Ceylon (Ceylon J. Sc., Biol. Sec. 2, 1959, 119- 240). Ahti, T.: Taxonomic studies on reindeer lichens (Cladonia, subg. Cladina) (Ann. Bot. Soc. Zool. Bot Fenn. Vanamo 32¹, 1961, 1-160, many fig.). Also map of C. mitis, p. 121. Bipolar type of distribution.