LICHALP

Chaenothecopsis vainioana (Nádv.) Tibell

Syn.: Calicium vainioanum Nádv.

Non- or doubtfully lichenised.

Substrate:

Altitudinal distribution: montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)

Note: a species resembling in habitus Ch. debilis: ascomata rather short (to 0.6 mm tall), with black stalks and broadly obovate capitula, outer part of the stalk dark reddish brown, of interwoven hyphae, and inner part pale, of periclinally arranged hyphae, epihymenium and exciple reddish brown, hypothecium dark aeruginose, ascospores with a distinct, single septum, rather large (8-10 × 2.5-3.5 µm); on lichens containing trentepohlioid photobionts, or on free Trentepohlia colonies, often on deciduous trees; not uncommon in temperate Fennoscandia, rarer in the rest of Europe; in the Alps only recorded from a few localities (sometimes on Lecanactis abietina).