Naetrocymbe subconfluens (Müll. Arg.) ined. (provisionally placed here, ICN Art. 36.1b)

Syn.: Arthopyrenia subconfluens (Müll. Arg.) Zahlbr.
Non- or doubtfully lichenised. Poorly known taxon.
Substrate: bark
Altitudinal distribution: subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)
Note: probably related to N. punctiformis, doubtfully lichenised, with a very thin thallus indicated by greyish patches, conical to hemispherical, black ascomata (to 0.2 mm in diam.) often fusing in groups of 2-5, interascal filaments in mature perithecia, 8-spored asci, and hyaline, 1-septate ascospores (18-21 × 4-7 μm); on thin branches of conifers (e.g. Pinus cembra); known from a few localities in the Western Alps.
Switzerland: Valais; France: Haute-Savoie;