1. On species of the Genus Entomophthora Fres. in Sweden. I. Classification and Distribution;Gustafsson;Lantbrukshögskolans Annaler,1965
2. Spores from foam;Ingold;Bulletin of the British Mycological Society,1967
3. More spores from rivers and streams;Ingold;Transactions of the British Mycological Society,1968
4. Hooker Lecture 1974: Convergent evolution in aquatic fungi: tetraradiate spore;Ingold;Biological Journal of The Linnean Society,1975
5. An Illustrated Guide to Aquatic and Water-borne Hyphomycetes (Fungi Imperfecti) with Notes on Their Biology;Ingold,1975