Porpidia platycarpoides (Bagl.) Hertel

in Nimis & Poelt, Studia Geobot., 7, suppl. 1: 187, 1987. Basionym: Lecidea platycarpoides Bagl. - N. Giorn. Bot. Ital., 11: 99, 1879.
Synonyms: Huilia percontigua (Nyl.) Mas. Inoue; Huilia platycarpoides (Bagl.) Hertel; Lecidea normannica Werner; Lecidea percontigua Nyl.; Lecidea reagens Zschacke; Porpidia cinereoatra var. percontigua (Nyl.) Boissière & Cl. Roux; Porpidia cinereoatra var. platycarpoides (Bagl.) Boissière & Cl. Roux; Porpidia macrocarpa var. percontigua (Nyl.) Boissière & Cl. Roux; Porpidia macrocarpa var. platycarpoides (Bagl.) Boissière & Cl. Roux
Distribution: C - Tosc, Laz, Sar (Rizzi & al. 2011). S - Si (Nimis & al. 1996b, Iacolino & Ottonello 2006).
Description: Thallus crustose, episubstratic, usually rather thick, cracked to granular-areolate, rarely delimited by a thin dark prothallus, the areoles 0.5-1.5(-2) mm across, minutely papillate or verrucose, flat to convex, whitish to ash grey. Medulla white, I-. Apothecia lecideine, 0.5-2(-3) mm across, isolated or in small clusters and sometimes confluent, sessile or semi-immersed in the thallus, with a black, flat to convex, often thinly white-pruinose, sometimes umbonate disc, and a prominent, swollen, often shiny, usually persistent proper margin. Proper exciple dark brown with a paler brown medulla, the excipular hyphae 4-8 μm thick, K+ yellow turning red; epithecium olive-brown to olive-green; hymenium colourless. 120-185 μm high; paraphyses conglutinated, richly branched and anastomosing, slightly swollen at apices; hypothecium dark. Asci 8-spored, elongate-clavate, with a thin, outer amyloid layer and a thickened tholus penetrated by a pore, the sides of which stain I/KI+ deep blue, Porpidia-type. Ascospores 1-celled, hyaline, ellipsoid, 15-23(-26) x 6-10(-12) µm, thin-walled, with a well-developed perispore. Photobiont chlorococcoid. Spot tests: medulla K+ yellow turning red (needle-like crystals), C-, KC-, P+ yellow. Chemistry: norstictic and connorstictic acids, plus 2 unidentified substances.
Note: a Mediterranean-Atlantic lichen found on siliceous rocks in rather sheltered situations; most frequent in Tyrrhenian Italy, where it is locally abundant (e.g. in parts of Sardinia).
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

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

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


P.L. Nimis CC BY-SA 4.0
TSB 10461



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (10461)
2001/11/29


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_2/Porpidia_platycarpoides.htm
France, 11/04/2013 - col de Vizzavona - Corse


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_2/Porpidia_platycarpoides.htm
France, 11/04/2013 - col de Vizzavona - Corse


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=162&lang=en
France, Le Fret


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=162&lang=en
France, Pointe du Raz


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=162&lang=en
France, Pointe du Raz


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=162&lang=en
France, Pointe du Raz


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=162&lang=en
France, Fort des Capucins


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=162&lang=en
France, Le Fret


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=162&lang=en
France, Pointe de Treberon


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=162&lang=en
France, Pointe de Treberon


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=162&lang=en
France, Roscanvel


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=162&lang=en
France, Roscanvel


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=162&lang=en
France, Roscanvel


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=162&lang=en
France, Roscanvel


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=162&lang=en
France, Roscanvel


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=162&lang=en
France, Roscanvel