TABLE I. Morphological characteristics of the genera with threadlike, coiled ascospore appendages included in this study. Refs: 1. Hyde (1992). 2. Shearer and Miller (1977). 3. Shearer and Crane (1980). 4. Kohlmeyer (1984). 5. Kohlmeyer and Kohlmeyer (1977). 6. Jones (1962). 7. Kohlmeyer and Kohlmeyer (1965). 8. Kohlmeyer and Volkmann-Kohlmeyer (1988). 9. Patil and Borse (1982). 10. Baker (1991). 11. Hyde et al (1999). 12. Anderson and Shearer (2002) Further information was obtained from examination of specimens cited herein. Line drawings adapted from Kohlmeyer and Volkmann-Kohlmeyer (1991), except Aquicalidophilus and Panorbium, which are original (all scale bars = 10 µm)