Lepra leucosora (Nyl.) Hafellner

in Hafellner & Türk, Stapfia, 104: 171, 2016. Basionym: Pertusaria leucosora Nyl. - Flora, 60: 223, 1877.
Synonyms: Pertusaria leucosora Nyl.
Distribution: N - TAA, Piem (Craighero 2010), VA, Lig. C - Tosc (Craighero 2010, Ravera & al. 2016), Marc (Craighero 2010), Laz (Craighero 2010), Abr (Craighero 2010), Sar (Monte 1993, Nöske 2000, Craighero 2010, Brackel & Berger 2019). S - Cal (TSB 6808).
Description: Thallus crustose, episubstratic, rather thin, rimose-areolate, pale or dark grey, sometimes delimited by a thin, black prothalline line. Soralia 0.3-1 mm across, at first punctiform, then maculiform and more or less orbicular, finally sometimes confluent, convex, whitish, with coarsely granular soredia; sparse cylindrical isidia-like outgrowths sometimes also present. Apothecia and pycnidia unknown. Photobiont chlorococcoid. Spot tests: thallus K+ yellow turning yellow-brown, C-, KC-, P+ yellow turning rust-red to bright red, sometimes P+ orange, UV-. Chemistry: protocetraric acid (major), succinprotocetraric acid (major),
Note: on siliceous rocks in upland areas. According to Roux & coll. (2014) this species is very closely related to, but distinct from L. aspergilla.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)

Commonnes-rarity: (info)

Alpine belt: very rare
Subalpine belt: rare
Oromediterranean belt: absent
Montane belt: rather rare
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: 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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Predictive model
Herbarium samples

Harrie Sipman https://archive.bgbm.org/digitalimages/Aegean/Pertusaria/Per_leucosora59074.jpg
Greece


Harrie Sipman
Greece
Source: https://archive.bgbm.org/digitalimages/Aegean/Pertusaria/Per_leucosora59074.jpg