1. Lichens;Ahmadjian,1966
2. Lichens;Ahmadjian,1966
3. Introductory Mycology;Alexopoulos,1964
4. A mycorrhizome from the Carboniferous of Illinois;Andrews;Bull. Torrey Bot. Cl.,1943
5. Fossil Sporocarps of the Genus Protosalvinia Dawson ,with special reference to P. furcata (Dawson) comb. nov.;Arnold;Svensk. Bot. Tidskr.,1954