Arthonia lepidophila (Anzi) Clauzade, Diederich & Cl. Roux

Bull. Soc. linn. Provence, n. sér., 1, 1989 comb. inval.. Basionym: Abrothallus lepidophilus Anzi - Atti Soc. Ital. Sc. Nat. Milano, 11: 177, 1868.
Synonyms: Buellia lepidophila (Anzi) Jatta; Celidium lepidophilum (Anzi) Rehm
Distribution: N - Lomb (Brackel 2016).
Description: Thallus inapparent, not lichenized, immersed in the thalli of Cladonia-species. Apothecia arthonioid, immarginate, 0.1-0.2 mm across, scattered or clustered, with a brownish black, often greenish-pruinose disc. Proper exciple poorly developed; epithecium olivaceous, K+ intensifying green; hymenium pale brown to colourless, 25-35 μm high, I+ red, K/I+ blue; paraphysoids thread-like and flexuous, branched, the apical cells 2.5-5.5 μm wide; hypothecium pale to medium brown. Asci 8-spored, broadly clavate to subglobose, semi-fissitunicate, with a large apical dome and a distinct ocular chamber, Arthonia-type. Ascospores 1-2(-3)-septate, hyaline, fusiform, soleiform or clavate, 10.5-13.5 x 3.5-4.5 µm, the upper cell larger, the lower cell becoming subdivided at a later stage. Photobiont absent. Spot tests: K-, C-, KC-, P-. Chemistry: without lichen substances.
Note: a lichenicolous fungus growing on Cladonia-species, whose distribution in Italy is still poorly known. See also A. coniocraeae, with usually 1-septate but sometimes 2-septate ascospores.
Growth form: Lichenicolous fungus
Substrata: soil, terricolous mosses, and plant debris
Reproductive strategy: mainly sexual
paras Cladonia pyxidata
Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: very rare
Oromediterranean belt: absent
Montane belt: absent
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

Paul Cannon; CC BY-NC

Paul Cannon - Source:; Owner: CC BY-NC

Paul Cannon; CC BY-NC