Myriotrema desquamans (Müll. Arg.) Hale
New Britain, Papua New Guinea, leg. H. Streimann 41493 (CBG).
Growing on tree bark in rain forest, in rather dark situations; pantropical.
An unusual species with ascocarps completely immersed in low thallus warts and opening by a punctiform pore.
[picture heigth = 5 mm]

Myriotrema olivaceum Fée
New Britain, Papua New Guinea, leg. H. Sipman 35502 (B).
Growing on tree bark in rain forest, preferably on the lower canopy branches; pantropical.
The ascomata are rather apothecium-like, but often show that the hymenium is free from the margin, which is of thalline origin.
[picture heigth = 5 mm]

Myriotrema terebratulum (Nyl.) Hale
Madang province, Papua New Guinea, leg. H. Sipman 39219 (B).
Growing on tree bark in rain forest, in rather dark situations; pantropical.
The ascomata show as little holes in a rather smooth thallus.
[picture heigth = 5 mm]