1

Spores 3 (–4)-septate

T. papulare

1:

Spores 1-septate

2

2

Perithecia 0.18–0.26 mm diam.; thallus on dry limestone

T. olivaceum

2:

Perithecia 0.29–0.41 mm diam.; thallus on aquatic limestone

T. pluvium