Lecanoropsis pseudosarcopidoides (M. Brand & van den Boom) Ivanovich & Printzen

in Ivanovich & al., Phytotaxa, 695, 1: 38, 2025. Basionym: Lecanora pseudosarcopidoides M. Brand & van den Boom - in van den Boom & Brand, Lichenologist, 40: 475, 2008.
Synonyms:
Description: Thallus crustose, endosubstratic to thinly episubstratic, continuous to faintly rimose-areolate, sometimes slightly warted, ecorticate, yellowish grey or pale to brownish grey, forming up to 4 cm wide patches, without a distinct prothallus. Apothecia lecanorine when young, later appearing biatorine, adpressed, broadly sessile to subglobose, 0.4-0.9 mm across, with an initially flat, later convex, pale pinkish to pale orange, pale to intense red-brown to dark brown or greyish, sometimes slightly pruinose disc and a thin, at first prominent and paler thalline margin tending to become of the same colour of the disc, and finally often excluded. Thalline exciple corticate only at base, the cortex 20-35 µm wide, the medulla at first rich in algae, but soon these limited to the basal part; epithecium colourless to yellowish brown, with many coarse, colourless granules, the darker spots N+ reddish violet; hymenium colourless, 40-50(-55) µm high, with orange-brown guttules; paraphyses simple or sparingly branched, 1.5-2 µm thick at mid-level, the apical cells not markedly swollen, to 3.5 µm wide; hypothecium 60-90 µm high, colourless to pale yellow. 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 (rarely 1-septate), hyaline, ellipsoid, 8.5-11.5 x 3.5-4.7(-5) µm. Micropycnidia immersed, greenish brown in upper part; microconidia simple to 1-septate, slightly curved, 5.3-7.4 x 1-1.3 µm. Mesopycnidia pale brown to blackish olive in upper part; mesoconidia bacilliform, slightly curved, 4.4.-6.3 x 1.4-2.2 µm. Leptopycnidia rare, often found at the margin of the hymenium; leptoconidia curved, 10-17 x 0.7-0.9 µm. Photobiont chlorococcoid. Spot tests: thallus and apothecia K-, C-, KC-, P-, UV-. Chemistry: isousnic acid.
Growth form: Crustose
Substrata: lignum
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

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

pH of the substrata:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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Rarity

absent
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Predictive map

Source: https://www.europeana.eu/it/item/11629/HERBARXBGBMXGERMANYXBX60X0187274
Lecanora pseudosarcopidioides Brand & v.d.Boom - Berlin-Dahlem Botanical Garden and Botanical Museum, Germany - CC BY-SA.


Source: https://www.europeana.eu/it/item/11629/HERBARXBGBMXGERMANYXBX60X0187274
Lecanora pseudosarcopidioides Brand & v.d.Boom - Berlin-Dahlem Botanical Garden and Botanical Museum, Germany - CC BY-SA.


Source: https://www.europeana.eu/it/item/11629/HERBARXBGBMXGERMANYXBX60X0187274
Lecanora pseudosarcopidioides Brand & v.d.Boom - Berlin-Dahlem Botanical Garden and Botanical Museum, Germany - CC BY-SA.