Calogaya pusilla (A. Massal.) Arup, Frödén & Søchting

in Arup & al., Nord. J. Bot., 31: 39, 2013. Basionym: Physcia pusilla A. Massal. - Atti Ist. Ven., ser. 2, vol. III, append. III: 59, fig. VII, 1852.
Synonyms: Caloplaca murorum f. pulvinata (A. Massal.) Ozenda & Clauzade; Caloplaca murorum var. pulvinata (A. Massal.) Jatta; Caloplaca pusilla (A. Massal.) Zahlbr.; Caloplaca saxicola subsp. pulvinata (A. Massal.) Clauzade & Cl. Roux; Gasparrinia pusilla (A. Massal.) Tornab.; Physcia murorum var. pulvinata A. Massal.; Physcia murorum var. pulvinata f. euphora A. Massal.; Physcia pusilla var. turgida A. Massal.; Placodium pusillum (A. Massal.) Anzi
Distribution: N - VG (Crisafulli & al. 2004, Tretiach & al. 2007b), Frl (Nascimbene & al. 2009b), Ven (Caniglia & al. 1999, Lazzarin 2000b, Nascimbene & Caniglia 2003c, Nascimbene 2004, 2005c, 2008c, Thor & Nascimbene 2007, Nascimbene & Salvadori 2008, Gaya 2009), TAA (Nascimbene 2003, 2004, 2008b), Lomb (Valcuvia & al. 2003, De Vita & Valcuvia 2004), Piem (Isocrono & al. 2004), VA (Piervittori & Isocrono 1997, 1999, Piervittori & al. 2004), Emil (Nimis & al. 1996, Valcuvia & Grieco 1995, Valcuvia & Savino 2000, Morselli & Regazzi 2006, Fariselli & al. 2020), Lig. C - Tosc (Pasquinelli & al. 2009), Marc (Nimis & Tretiach 1999), Umb (Panfili 2000b, 2007, Ravera & al. 2006, Genovesi 2011), Laz (Pietrini & al. 2008, Roccardi 2011, Genovesi & al. 2011), Abr (Nimis & Tretiach 1999, Gheza & al. 2021), Mol (Nimis & Tretiach, 1999, 2004, Caporale & al. 2008, Genovesi & Ravera 2014), Sar. S - Camp (Nimis & Tretiach 2004, Catalano & al. 2016), Pugl (Nimis & Tretiach 1999, Gianfreda & Matino 2020), Bas (Nimis & Tretiach 1999), Cal (Puntillo 1996), Si (Nimis & al. 1994, Poli & al. 1997, Grillo 1998, Grillo & Caniglia 2004, Brackel 2008c).
Description: Thallus crustose-placodioid, episubstratic, salmon-coloured to brownish orange, often thinly white pruinose, especially in central part, forming regular rosettes to 1.8 cm in diam., several thalli often merging to cover larger surfaces. Central part areolate, with flat to convex, 0.3-1.3 mm wide areoles formed from lobe fragmentation; marginal lobes convex, sometimes becoming flat toward the somewhat broader apex, finger-like or strongly branched, always contiguous, 0.3-1.7 mm long. 0.2-1.2 mm wide. Thallus 100-365 μm thick; upper cortex 14-65(-85) μm thick, with an orange, K+ red upper layer layer and a colourless inner layer, scleroplectenchymatous, the upper part with many crystals visible under polarized light; medulla quite lax. Apothecia pseudolecanorine or zeorine, abundant, crowded, 0.2-1.2 mm across, rounded or deformed by mutual compression, usually on areoles and lobe bases. Disk flat to strongly convex, orange to brownish orange, slightly pruinose, smooth; margin in pseudolecanorine apothecia 30-130 μm thick, concolorous with disc; in zeorine apothecia, proper margin 30-50 μm thick and thalline margin 30-130 μm thick, the former slightly lighter than disk, not prominent, the latter pruinose. Epithecium (6-)8-10(-12) μm thick, orange, K+ red; hymenium colourless, 50-80(-95) μm tall; paraphyses septate, forked or weakly branched subapically, (1.5-)2-3(-3.5) μm at base, the apical cells (2.5-)3-7(-8.5) μm wide; hypothecium colourless, scleroprosoplectenchymatous. Asci 8-spored, clavate, Teloschistes-type. Ascospores 1-septate, polarilocular, hyaline, broadly ellipsoid (9-)10.5-13.5(-16) x (4.5-)5.5-7(-8.7) μm, the septum (2.5-)3-4.5(-6) μm thick. Photobiont chlorococcoid. Spot tests: thallus and apothecia K+ red, C-, KC-, P-. Chemistry: thallus and apothecia with parietin (major), fallacinal, emodin, teloschistin and parietinic acid (minor), corresponding with chemosyndrome A of Søchting (1997).
Note: this coniophilous and ornithocoprophilous, much misunderstood species, grows mainly on walls and horizontal surfaces of calcareous rocks and has been frequently confused with C. saxicola in the broad sense. It is certainly much more widespread in Italy, and most of the earlier records of C. saxicola refer to this taxon. For further details see Gaya (2009) and Gaya & al. (2011).
Growth form: Crustose placodiomorph
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

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


pH of the substrata:

(info)

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5

Solar irradiation:

(info)

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5

Aridity:

(info)

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5

Eutrophication:

(info)

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5

Poleotolerance:

(info)

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Altitudinal distribution:

(info)

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P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (33347)
2001/12/03
detail of marginal lobes



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (11201)
2001/12/07



Elena Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB 32030



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (33347)
2001/12/03



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (3707)
2001/11/19


Triin Aimla; Owner: University of Tartu



P.L.Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (38193)
2008.02.23


Antonio Valero; Owner: Antonio Valero
Spain
2010


Antonio Valero; Owner: Antonio Valero
Spain
2010


Antonio Valero; Owner: Antonio Valero
Spain
2010


Antonio Valero; Owner: Antonio Valero
Spain
2010



Pier Luigi Nimis; Owner: Department of Life Sciences, University of Triedte
Italy, Veneto, Venezia, Venice, Giardini Biennale
07/2016



Pier Luigi Nimis; Owner: Department of Life Sciences, University of Triedte
Italy, Veneto, Venezia, Venice, Giardini Biennale
07/2016



Pier Luigi Nimis; Owner: Department of Life Sciences, University of Triedte
Italy, Veneto, Venezia, Venice, Giardini Biennale
07/2016



Pier Luigi Nimis; Owner: Department of Life Sciences, University of Triedte
Italy, Veneto, Venezia, Venice, Giardini Biennale
07/2016



Pier Luigi Nimis; Owner: Department of Life Sciences, University of Triedte
Italy, Veneto, Venezia, Venice, Giardini Biennale
07/2016



Pier Luigi Nimis; Owner: Department of Life Sciences, University of Triedte
Italy, Veneto, Venezia, Venice, Giardini Biennale
07/2016



Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017



Felix Schumm – CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.



Felix Schumm – CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.



Felix Schumm – CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.



Felix Schumm – CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.



Felix Schumm – CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.



Felix Schumm – CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.



Felix Schumm – CC BY-SA 4.0



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Felix Schumm CC BY-SA 4.0
[16565], Germany, Baden-Württemberg, Schwäbische Alb, Kreis Göppingen. Messelstein bei Donzdorf, an Kalkfelsen, 48.69045° N, 9.83113° E, 750 m. Leg. et det. Schumm 25.07.2010.
as Caloplaca saxicola



Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017


Zahlbruckner A. 1926. Lichenes (Flechten). In: Engler A. (ed.): Die natürlichen Pflanzenfamilien. 2nd ed., vol 8, W. Engelmann, Leipzig, 270 pp.
as Caloplaca murorum



Pier Luigi Nimis - Department of Life Sciences, University of Trieste - CC BY-SA 4.0
TSB 37183



Pier Luigi Nimis - Department of Life Sciences, University of Trieste - CC BY-SA 4.0
TSB 37183