Theissenia

Theissenia
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Sordariomycetes
Order: Xylariales
Family: Graphostromataceae
Genus: Theissenia
Maubl.
Type species
Theissenia pyrenocrata
(Theiss.) Maubl.

Theissenia is a genus of fungi in the family Graphostromataceae.

The genus was circumscribed by André Maublanc in Bull. Soc. Mycol. France vol.30 on page 51 in 1914.

The genus name of Theissenia is in honour of Ferdinand Theissen (1877–1919), who was a German-Austrian Jesuit priest and mycologist.