LITERATURE CITED
- Benny, G. L., and J. W. Kimbrough. 1980. A synopsis of the orders and families of Plectomycetes with keys to genera. Mycotaxon 12: 1–91.
- Erikkson, O. 1983. Outline of the Ascomycetes. Systema Ascomycetum 2: 1–38.
- Erikkson, O., and D. L. Hawksworth. 1986. Outline of the Ascomycetes---1986. Systema Ascomycetum 5: 185–324.
- Fennell, D. K. 1973. Plectomycetes; Eurotiales. In: The fungi: an advanced treatise. Eds., G. C. Ainsworth, F. K. Sparrow, and A. S. Sussman. Academic Press.
- Gibson, J. L., J. W. Kimbrough, and G. L. Benny. 1986. Ultrastructural observations on Endogonaceae (Zygomycetes): Endogone pisiformis. Mycologia 78: 543–553.
- Kish, L. P. 1980. Spore germination of Ascosphaera spp. associated with the Alfalfa Leafcutting bee, Megachilerotundata. J. Invertebr. Pathol. 36: 125–128.
- Luttrell, E. S. 1955. The ascostromatic Ascomycetes. Mycologia 47: 511–532.
- Malloch, D. 1979. Plectomycetes and their anamorphs. Pp. 153–165. In: The whole fungus. Vol. 1. Ed., B. Kendrick. National Museum of Natural Sciences (National Museums of Canada) and the Kananaskis Foundation, Ottawa, Canada. 793 p.
- Müller, E., and W. Loeffler. 1976. Mycology: an outline for science and medical students. Trans, by B. Kendrick and F. Barlocher. George Thieme Publishers, Stuttgart. 305 p.
- Prökschl, H. 1953. Beiträge zur Kenntnis der Entwicklungs-geschichte von Pericystis apis Maassen. Arch. f. Microbiol. 18: 198–209.
- Rogers, J. D. 1965. The conidial state of Coniochaeta ligniaria: morphology and cytology. Mycologia 57: 368–378.
- Skou, J. P. 1972. Ascosphaerales. Friesia 10: 1–24.
- Skou, J. P.. 1982. Ascosphaerales and their unique ascomata. Mycotaxon 15: 487–499.
- Skou, J. P., and K. Hackett. 1979. A new, homothallic species of Ascosphaera. Friesia 11: 265–271.
- Spiltoir, C. F. 1955. Life cycle of Ascosphaera apis (Pericystis apis). Amer. J. Bot. 42: 501–508.
- Varitchak, B. 1932. L'evolution nucleaire chez le Pericystis apis Maassen. Compt. Rendu Hebd. Séances Acad. Sci. 194: 300–302.
- Varitchak, B.. 1933. Deuxième contribution a l'etude du developpement des Ascomycetes. L'evolution nucleaire dans le sac sporifere de Pericystis apis Maassen et sa signification pour la phylogenie des Ascomycetes. Le Botaniste 25: 343–391.