Lepra mammosa (Nyl.) Hafellner

in Hafellner & Türk, Stapfia, 104: 171, 2016. Basionym: Pertusaria mammosa Harm. - Lich. France, 5: 1141, 1913.
Synonyms: Marfloraea mammosa (Harm.) S. Y. Kondr., L. Lőkös & J.-S. Hur; Pertusaria etrusca Erichsen; Pertusaria mammosa Harm.
Distribution: C - Tosc, Laz, Sar (Nöske 2000). S - Cal (Puntillo 1996).
Description: Thallus crustose, episubstratic, 1-3(-4) mm thick, grey to grey-brown, sometimes zonate, markedly papillate, the papillae isidia-like, 1-2 mm wide, bearing at the top an initially punctiform, then expanded and 0.7-1 mm wide, white soralium with granulose soredia. Apothecia extremely rare, immersed on the top of fruiting papillae, with an expanded, dark grey to blackish disc. Hymenium colourless, the hymenial gel not or only weakly amyloid; paraphyses lax, branched and richly anastomosing. Asci 1-spored, broadly cylindrical, the apex without a distinct ocular chamber, the outer sheath K/I+ blue, otherwise K/I–, with an inner extensible layer, Pertusaria-type. Ascospores 1-celled, hyaline, narrowly ellipsoid, 180-200 x 60-70 µm. Photobiont chlorococcoid. Spot tests: medulla and soralia K+ faintly yellow-brown, C-, KC+ reddish brown, P+ bright red. Chemistry: fumarprotocetraric acid, plus variable amounts of succinprotocetraric acid.
Note: on steeply inclined to vertical surfaces of siliceous rocks in humid areas, usually below the montane belt; mainly Tyrrhenian in Italy.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: extremely rare
Humid mediterranean belt: rare
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
Index Fungorum GBIF

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=917&lang=en
France, Corse, L'Ospedale


Nere Sorrentino
Spain, Galicia, Atlantic Coast


Nere Sorrentino
Spain, Galicia, Atlantic Coast


Harrie Sipman – Source http://www.bgbm.fu-berlin.de/sipman/Zschackia/AegeanLichens/CaloplacaAC.htm - As Caloplaca oasis


Nere Sorrentino
Spain, Galicia, Atlantic Coast


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lepra_mammosa.htm
France, session AFL 2010 - Hérault


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=917&lang=en
France, Corse, Campomoro


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=917&lang=en
France, Corse, Campomoro


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=917&lang=en
France, Corse, Campomoro


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=917&lang=en
France, Corse, Campomoro


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=917&lang=en
France, Corse, Cap Corse


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=917&lang=en
France, Corse, Col de Bavella


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=917&lang=en
France, Corse, L'Ospedale


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=917&lang=en
France, Corse, L'Ospedale


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=917&lang=en
France, Corse, L'Ospedale


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=917&lang=en
France, Corse, L'Ospedale


Nere Sorrentino
Spain, Galicia, Atlantic Coast


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=917&lang=en
France, Corse, L'Ospedale


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=917&lang=en
France, Corse, Lumio