Lecanora handelii J. Steiner

in Handel-Mazzetti, Ann. naturhist. Hofmus. Wien, 23: 119, 1909.
Synonyms:
Description: Thallus crustose, episubstratic, of dispersed to contiguous, flat to usually convex, grey-green to yellowish grey areoles often developing on a black hypothallus, sorediate, the soredia whitish, grey-green or blue-grey, 20-30 μm thick, mainly arising from the margins of the areoles, later covering the whole surface. Medulla I-. Apothecia very rare, lecanorine, 0.2-0.5 mm across, sessile, with a pale reddish brown, sometimes blue-black-pruinose disc, and a persistent, not or only weakly raised, entire thalline margin. Epithecium colourless to pale yellowish brown, without crystals; hymenium colourless, 50-65 μm high; paraphyses branched and anastomosing, 1.5-2.5 μm thick, the apical cells not or only slightly swollen; hypothecium colourless. Asci 8-spored, clavate, Lecanora-type. Ascospores 1-celled, hyaline, ellipsoid, 8-13 x 5-7 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC- or KC+ faintly yellow, P-, UV+ dull orange. Chemistry: usnic acid, zeorin.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
In underhangs rarely wetted by rain
Species of metal-rich rocks

Commonnes-rarity: (info)

Alpine belt: extremely rare
Subalpine belt: very rare
Montane belt: very rare
Dry submediterranean belt: absent
Humid submediterranean belt: absent
Padanian area: absent

pH of the substrata:

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Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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Rarity

absent
extremely rare
very rare
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common
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extremely common
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Occurrence data
Predictive map

P.L. Nimis CC BY-SA 4.0
TSB 33827


Felix Schumm - CC BY 4.0
[VZ1438], Bohemoslovacia. Slovacia, Tatra Minor. Distr. Banská Bystrica, prope vicum Richtárova supra Staré, 600 m. Ad lapides prope metalla cupri vetusta. Leg. A. Vezda, 5.7.1975. EX A. VEZDA LICHENES SELECTI EXSICCATI NR. 1439


Felix Schumm - CC BY 4.0
[VZ1438], Bohemoslovacia. Slovacia, Tatra Minor. Distr. Banská Bystrica, prope vicum Richtárova supra Staré, 600 m. Ad lapides prope metalla cupri vetusta. Leg. A. Vezda, 5.7.1975. EX A. VEZDA LICHENES SELECTI EXSICCATI NR. 1439