Collection location: Zadnja Trenta Valley, East Julian Alps, Posočje, Slovenia [Click for map]
Habitat: Mixed mountain forest, Picea abies and Fagus sylvatica dominant trees; bottom of an Alpine valley, locally almost flat terrain; alluvial, calcareous ground; partly protected from direct rain by tree canopies; average precipitations ~ 3.000 mm/year, average temperature 4-6 deg C, elevations 1.040 m (3.400 feet), alpine phytogeographical region.
Substratum: decorticated, still standing truck of a dead Picea abies.
Place: Zadnja Trenta valley, Zapodn place, left bank of (dry) river Soča, near a small torrent-dam; East Julian Alps, Posočje, Slovenia EC.
Comment: Pictures most probably show species Calicium glaucellum. Size of the shiny black, stalked apothecia, obovoid to weakly bell-shaped apothecia, very thin, almost invisible grayish thallus, absence of pruina, the ratio of sporocarp height to stalk diameter (AVG=11.6, SD=2.4, N=15) and substratum speak in favor of Calicium glaucellum. Quite some time I was unable to decide between Calicium abietinum and Calicium glaucellum. Sporocarps seem to have too thin stalks compared to their height for Calicium abietinum. Also no pruina was seen. Finally, I found out that Index Fungorum considers both names as synonyms in spite of the fact that most of my literature considers both names as separate species. Obviously they must be quite variable. Microscopy data would make this determination much more reliable.
According to Ref.4, 5 and 7 the species has been found in Slovenia several times, also in the East Julian Alps (Ref.7).
Nikon D70 / Nikkor Micro 105mm/f2.8
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Created: 2018-01-09 12:35:31 CST (-0600)
Last modified: 2018-01-09 12:47:06 CST (-0600)
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