Lecidea infirmata Arnold

Verh. zool.-bot. Ges. Wien, 37: 112, 1887.
Synonyms: Lecidea paupercula f. infirmata (Arnold) Lettau
Distribution: N - TAA (Arnold Lich. Exs. 844: Hertel 1995, Hertel & Schuhwerk 2010).
Description: Thallus crustose, thinly episubstratic, 0.2-0.4 mm thick, of 0.3-0.6 mm wide, more or less flattened, pale ochraceous areoles with a whitish margin, scattered in depressions of the rock, most often poorly evident, without a distinct prothallus. Medulla I-. Apothecia lecideine, black, with a smooth disc and a raised proper margin. Epithecium green to blue-green, 13-17 µm high; hymenium colourless, 50-60 µm high; paraphyses coherent; hypothecium colourless to pale green. Asci 8-spored, narrowly clavate, thick-walled, with a K/I+ pale blue tholus and a strongly amyloid, thin apical cushion, surrounded by a I+ blue outer layer, Lecidea-type. Ascospores 1-celled, hyaline, ellipsoid, 9-12 x 5-6 µm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-. Chemistry: unknown, but probably thallus without lichen substances.
Note: known only from the type collection and from a single record from Austria, this silicicolous species found above treeline is related to L. atrobrunnea. Indicator values are tentative.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: very rare
Subalpine belt: absent
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