Carbonea supersparsa (Nyl.) Hertel

Mitt. bot. Staatss. München, 19: 375, 1983. Basionym: Lecidea supersparsa Nyl. - Flora, 48, 1865.
Synonyms: Nesolechia supersparsa (Nyl.) Rehm; Nesolechia vitellinaria var. supersparsa (Nyl.) Keissl.
Distribution: N - Frl (Tretiach & Hafellner 2000, Brackel 2016, Hafellner 2021), TAA (Hafellner 2006, 2021, Brackel 2016), Piem (Brackel 2016), Lig (Herb. von Brackel 502). C - Tosc (Brackel 2015, 2016), Laz (Brackel 2016), Sar (Brackel 2016). S - Cal (Brackel & Puntillo 2016, Brackel 2016), Si (Brackel 2008c, 2016).
Description: Thallus indistinct, not lichenized, immersed in the thallus and apothecia of Lecanora polytropa and Rhizoplaca-species. Apothecia lecideine, jet black, sessile, 0.2-0.5 mm across, with a concave to flat disc, and a persistent, raised proper margin. Proper exciple carbonized, green-black or brown-black; epithecium dark blue-green, K+ bright emerald green; hymenium colourless; paraphyses simple, conglutinated, 1-2 μm thick at mid-level, the apical cell to 2.5 µm wide; hypothecium colourless to pale brown, K-. Asci 8-spored, clavate, very thin-walled, with a K/I+ blue, tall tholus penetrated by a faintly amyloid apical cushion, the wall K/I-, surrounded by a blue outer layer, Lecanora-type. Ascospores 1-celled, hyaline, ellipsoid to fusiform, with pointed ends, 8.5-13(-14) x 4.5-7 µm. Photobiont absent. Spot tests: all negative. Chemistry: without lichen substances.
Note: a boreal-montane to arctic-alpine, circumpolar lichenicolous fungus, certainly widespread throughout the Alps.
Growth form: Lichenicolous fungus
Substrata: rocks
Reproductive strategy: mainly sexual
paras Lecanora polytropa and Rhizoplaca spp.

Commonnes-rarity: (info)

Alpine belt: rather rare
Subalpine belt: rather common
Oromediterranean belt: extremely rare
Montane belt: very rare
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent

pH of the substrata:


Solar irradiation:








Altitudinal distribution:


Predictive model
Herbarium samples

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (11781)
on the host, Lecanora polytropa

Leif Stridvall - Source:
Courtesy: Anita Stridvall