Jahnulales

thumb | right | A–F Jahnula purpurea (from the HOLOTYPE; MJF 14016, ILLS 72402). A–C Ascomata on submerged wood. Note the purple stain. Arrowheads indicate the subtending superficial hyphae on wood, which connect multiple ascomata on wood. D Ascoma in water showing broad hyphae emerging from the base of the fruiting body. E, F Longitudinal section through ascoma. Note broad pseudoparenchymatic cells comprising the peridial wall. The Jahnulales are an order of fungi in the class Dothideomycetes, subclass Pleosporomycetidae. They are ascomycetes that have stalked/stessile and dimorphic ascomata

Aliquandostipitaceae is a family of fungi in the Ascomycota, class Dothideomycetes. The family was described by Patrik Inderbitzin in 2001, and the order Jahnulales was created in 2002 to accommodate the family. The distinguishing characteristic for members of the family are the unusually wide hyphae ("widest hyphae reported in the ascomycetes") that support the spore-bearing structures, and the presence of ascomata both with and without stalks. The genus Aliquandostipe has a pantropical distribution, having been found in Central America and southeast Asia; Jahnula has a wider distribution. Sp

Jahnula is a genus of aquatic fungi in the family Aliquandostipitaceae. The genus was first named by Wilhelm Kirschstein in 1936.

Aliquandostipite is a genus of fungi in the family Aliquandostipitaceae. Species in the genus are saprobic, and grow on decaying wood in aquatic or moist environments. The type genus of the Aliquandostipitaceae, Aliquandostipite was first described by Patrik Inderbitzin and colleagues in 2001.