1.	Ascospores longer than 40 μm ……………………………………..……... 2
1.	Ascospores shorter than 40 μm …………………………...……………..... 3
2.	Ascospores elongate-fusiform with slightly swollen ends enclosed in a thin, irregular mucilaginous sheath, 40–58 × 8–10 μm …………………………………………………………………………………….. T. biatriispora
2.	Ascospores cymbiform to fusiform or cylindrical, with globose mucilaginous pads at both ends, 42–50 × 4–6 um ………..… T. aquatica
3.	Ascospores longer than 20 μm …………………………………………… 4
3.	Ascospore length range from below 20 μm ………...…………………….. 8
4.	Ascospores 20–30 μm long ……………………………………………… 5
4.	Ascospores longer than 30 μm …………………………………………… 7
5.	Ascomatal neck glabrous ………………………………………………… 6
5.	Ascomatal neck covered by short hairs, ascospores 21–30 × 7–8 μm …………………………………………………..……………………. T. pilosa
6.	Neck rostrate, ascospores (19–)20–25(–27.5) × (6.5–)7–8 μm ………………………………………………………………………………… T. dubia
6.	Neck cylindrical, ascospores 22–25(–27) × 6.5–8(–8.5) μm ……………….……………………………………………………………... T. calembola
7.	Ascospores 32–48 × 8–14 μm, wall 2–3 μm thick at sides, 3–4 μm at the ends ……………………..……………………………… T. crassiparietis
7.	Ascospores 24–32.5 × 6–9 μm, thinner-walled …………..… T. fusiformis
8.	Ascospores 13.5–19.5 × 5–7 μm ………………………..……… T. fibrosa
8.	Ascospores (17.5–)18–25(–26) × (6–)7–8.5 μm …. T. novae-zelandiae