Variospora thallincola (Wedd.) Arup, Frödén & Søchting

in Arup & al., Nord. J. Bot., 31: 77, 2013. Basionym: Lecanora murorum var. thallincola Wedd. - Mém. Soc. Imp. Sc. Nat. Cherbourg, 19: 274, 1875.
Synonyms: Caloplaca thallincola (Wedd.) Du Rietz; Klauderuiella thallincola (Wedd.) S. Y. Kondr. & J.-S. Hur.; Placodium callopismum f. thallincolum (Wedd.) Walt. Watson; Placodium thallincolum (Wedd.) H. Olivier
Distribution: C - Tosc (Ravera & al. 2022), Sar (Lo Forti & al. 2004).
Description: Thallus crustose-placodioid, episubstratic, bright golden yellow, epruinose, forming (1-)2-3(-4) cm wide, orbicular rosettes. Central part of thallus verrucose-areolate; marginal lobes contiguous, convex, smooth or with parallel furrows, 2-3 mm long, the apices slightly broader and somewhat shiny, 0.3-0.7(-1) mm wide. Cortex patchily covered with a layer of an amorphous extracellular substance hiding the cortical cells; medulla white. Apothecia zeorine, mostly confined to the central area, 0.3-0.8(-1) mm across, round to angular, with an orange-brown (darker than thallus), epruinose, at first flat, then convex disc, and a paler, often finally excluded margin. Epithecium orange, K+ red; hymenium colourless; paraphyses simple or forked, c. 2 μm thick at base, with slightly swollen apical cells; hypothecium colourless. hyaline, very variable, Ascospores 2-celled, polarilocular, hyaline, ellipsoid when young, but soon becoming rhombic to lemon-shaped, 11-16(-19) x (5-)8-10(-11) µm, the equatorial thickening (“septum”) 4-5 µm (1/2-1/3 of spore length). Pycnidia reddish brown. Conidia bacilliform. 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: a mainly Atlantic species confined to the salt-spray belt, reported from a single station in western Sardinia.
Growth form: Crustose placodiomorph
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)
Taxon bound to maritime-coastal situations

Commonnes-rarity: (info)

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

pH of the substrata:

12345

Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

0123

Altitudinal distribution:

123456


Predictive model
Herbarium samples


Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (33781)
2001/11/19



Felix Schumm – CC BY-SA 4.0
Image from: F. Schumm (2008) - Flechten Madeiras, der Kanaren und Azoren. Beck, OHG - ISBN: 978-3-00-023700-3



Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363



Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19606], Bulgaria, Pontus distr. Burgas, in litore inter pagos Mi urin et Varvara, alt. 2-4 m, ad saxa silicea maritima. Leg. A. Kiszely & A. Vezda, 18.08.1975. VEZDA: LICHENES SELECTI EXSICCATI NR. 1363.


Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)



Felix Schumm – CC BY-SA 4.0
[14130], Portugal, Azoren, Terceira, beim Hotel Terceira Mar, 38°39.347' N, 27°13.924' W, ca. 8 m. Leg. Aptroot & Schumm 14.07.2008, det. Schumm 2013, conf. Aptroot



Felix Schumm – CC BY-SA 4.0
[14130], Portugal, Azoren, Terceira, beim Hotel Terceira Mar, 38°39.347' N, 27°13.924' W, ca. 8 m. Leg. Aptroot & Schumm 14.07.2008, det. Schumm 2013, conf. Aptroot



Felix Schumm – CC BY-SA 4.0
[14130], Portugal, Azoren, Terceira, beim Hotel Terceira Mar, 38°39.347' N, 27°13.924' W, ca. 8 m. Leg. Aptroot & Schumm 14.07.2008, det. Schumm 2013, conf. Aptroot



Felix Schumm – CC BY-SA 4.0
[14130], Portugal, Azoren, Terceira, beim Hotel Terceira Mar, 38°39.347' N, 27°13.924' W, ca. 8 m. Leg. Aptroot & Schumm 14.07.2008, det. Schumm 2013, conf. Aptroot



Felix Schumm – CC BY-SA 4.0
[14130], Portugal, Azoren, Terceira, beim Hotel Terceira Mar, 38°39.347' N, 27°13.924' W, ca. 8 m. Leg. Aptroot & Schumm 14.07.2008, det. Schumm 2013, conf. Aptroot



Felix Schumm – CC BY-SA 4.0
[14130], Portugal, Azoren, Terceira, beim Hotel Terceira Mar, 38°39.347' N, 27°13.924' W, ca. 8 m. Leg. Aptroot & Schumm 14.07.2008, det. Schumm 2013, conf. Aptroot



Felix Schumm – CC BY-SA 4.0
[14130], Portugal, Azoren, Terceira, beim Hotel Terceira Mar, 38°39.347' N, 27°13.924' W, ca. 8 m. Leg. Aptroot & Schumm 14.07.2008, det. Schumm 2013, conf. Aptroot



Felix Schumm – CC BY-SA 4.0
[14130], Portugal, Azoren, Terceira, beim Hotel Terceira Mar, 38°39.347' N, 27°13.924' W, ca. 8 m. Leg. Aptroot & Schumm 14.07.2008, det. Schumm 2013, conf. Aptroot



Felix Schumm – CC BY-SA 4.0
[14130], Portugal, Azoren, Terceira, beim Hotel Terceira Mar, 38°39.347' N, 27°13.924' W, ca. 8 m. Leg. Aptroot & Schumm 14.07.2008, det. Schumm 2013, conf. Aptroot



Felix Schumm – CC BY-SA 4.0
[14130], Portugal, Azoren, Terceira, beim Hotel Terceira Mar, 38°39.347' N, 27°13.924' W, ca. 8 m. Leg. Aptroot & Schumm 14.07.2008, det. Schumm 2013, conf. Aptroot



Felix Schumm – CC BY-SA 4.0
[14130], Portugal, Azoren, Terceira, beim Hotel Terceira Mar, 38°39.347' N, 27°13.924' W, ca. 8 m. Leg. Aptroot & Schumm 14.07.2008, det. Schumm 2013, conf. Aptroot



Felix Schumm – CC BY-SA 4.0
[14130], Portugal, Azoren, Terceira, beim Hotel Terceira Mar, 38°39.347' N, 27°13.924' W, ca. 8 m. Leg. Aptroot & Schumm 14.07.2008, det. Schumm 2013, conf. Aptroot


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Variospora_thallincola.htm
France, 12/10/2015 - Punta di Ventilègne - Corse


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Variospora_thallincola.htm
France, 12/10/2015 - Punta di Ventilègne - Corse


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=15&lang=en
France, Ctozon


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=15&lang=en
France, Landevennec


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=15&lang=en
France, Landevennec


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=15&lang=en
France, Landevennec


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=15&lang=en
France, Plougastel Daoulas


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=15&lang=en
France, Roscanvel


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=15&lang=en
France, Roscanvel


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=15&lang=en
France, Roscanvel


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=15&lang=en
France, Roscanvel


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=15&lang=en
France, Roscanvel


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=15&lang=en
France, Roscanvel


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=15&lang=en
France, Roscanvel


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=15&lang=en
France, Roscanvel