Found along forest road in a decidous forest, growing on bare soil, probably periodically humid place with some rests of wood/bark, ca. 350 m s.m. Fruitbodies about 3 mm diam.
Spores perfectly globose, (15) 16,5-19,5 (20,4) um (squash mount in LACB).
Ornamentation: mixed small and big tubercules, or both rounded and conical warts, (0,3) 0,4-1,5 (1,9) um high, rarely confluent but sometimes interconnected with fine lines.
Marginal hairs: often sinuous, with simple or shortly bi-(tri-)furcate base, both obtuse and pointed ends, 294-420 (606) × 17,5-23 um.
Lateral hairs with simple or shortly bifurcate base, shorter, often bent/crooked.

Could it be S. heterosphaera nom.prov. or did I overlook some other similar species? And are there any other significant differences between S. heterosphaera and S. minor, except for the ornamentation?
Thank you very much.
Viktorie 

Malcolm Greaves, 01-07-2016 08:52

Re : Scutellinia cf. heterosphaera

Viktorie
This fits perfectly with the description I have for S heterosphaera and the specimens I have found some of which were id'd by Beñat. Although you are right about the differences between the two species sporal ornamentation the spores of S minor tend to be subglobose when immature so check those still in the ascii
Mal

Viktorie Halasu, 01-07-2016 11:20

Re : Scutellinia cf. heterosphaera

Great, thank you very much, I'll check the immature spores during the weekend. Locality is in Moravia (eastern Czech Rep.). I wonder if they checked specimens from PRM or BRNM determined as S. minor or S. barlae, perhaps there might be some older collection of this species too.

Viktorie Halasu, 02-07-2016 16:36

Re : Scutellinia cf. heterosphaera

Immature spores are globose too, so heterosphaera it is. Thank you again.

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