^Punithalingam, E. (1966). "Development of the pycnidium in Septoria". Transactions of the British Mycological Society. 49 (1): 19–25. doi:10.1016/S0007-1536(66)80030-X. ISSN 0007-1536.
^Roger, C.; Tivoli, B. (1996). "Spatio-temporal development of pycnidia and perithecia and dissemination of spores of Mycosphaerella pinodes on pea (Pisum sativum)". Plant Pathology. 45 (3): 518–528. doi:10.1046/j.1365-3059.1996.d01-139.x. ISSN 0032-0862.
^Ariyawansa, Hiran A.; Phillips, Alan J.L.; Chuang, Wei-Yu; Tsai, Ichen (2018-07-26). "Tzeananiaceae, a new pleosporalean family associated with Ophiocordyceps macroacicularis fruiting bodies in Taiwan". MycoKeys (37): 1–17. doi:10.3897/mycokeys.37.27265. ISSN 1314-4049. PMC 6072833. PMID 30100794.
Further reading
Kulik, Martin M. "Symptomless infection, persistence, and production of pycnidia in host and non-host plants by Phomopsis batatae, Phomopsis phaseoli, and Phomopsis sojae, and the taxonomic implications." Mycologia(1984): 274–291.
Calpouzos, L., and D. B. Lapis. "Effects of light on pycnidium formation, sporulation, and tropism by Septoria nodorum." Phytopathology 60.5 (1970): 791–794.