Chaenothecopsis oregana Rikkinen

Syn.: Chaenothecopsis zebrina Rikkinen & Tuovila
Non- or doubtfully lichenised.
Substrate: resin
Altitudinal distribution: montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)
Note: a species resembling Ch. resinicola, with a shiny black stalk and a lenticular to subspherical, black capitulum, under the microscope stalk and exciple brownish-red, composed of periclinally arranged, subparallel hyphae, the dark cell walls giving the stalk a striped appearance; hymenium with an amyloid reaction but reaction fading, ascospores simple, ellipsoid to cylindrical, smooth, reddish brown; on resin of conifers; based on a type from Western North America, widespread in the Northern Hemisphere but altogether rare; in the Alps so far only found on resin of Abies in Central Switzerland.
Switzerland: Schwyz;