Flavoplaca arcis (Poelt & Vězda) Arup, Frödén & Søchting

Nord. J. Bot., 31: 44, 2013. Basionym: Caloplaca chlorina var. arcis Poelt & Vezda in Vezda - Sched. ad Lich. Sel. Exs., 99: 6 (nr. 2470), 1990.
Synonyms:
Distribution: C - Sar (Vondrák 2008). S - Si (Herb. Vondrák 10794).
Description: Thallus crustose, episubstratic, yellow, areolate-subsquamulose, 80-220 μm thick, at first smooth, then more or less densely blastidiate, especially in central parts; areoles (0.2-)0.7-1.5(-3) mm wide, the marginal ones often lobulate, 0.4-1 x 0.2-1 mm, flat, flexuose or slightly wrinkled, forming 2-10 mm wide rosettes; blastidia (30–)50-75(-130) μm in diam. Apothecia zeorine, orange-yellow, adnate to sessile, (0.3-)0.5-0.9(-1.5) mm across, with a slightly concave to flat disc and a smooth to crenulate, often blastidiate margin. Thalline exciple more or less evident, 25-75(-100) μm wide, enlarged with age; proper exciple (70-)85-105(-140) μm thick, of radiating hyphae; epithecium orange, granular, K+ red; hymenium colourless, 70-100 μm high; paraphyses simple or sparingly branched, 1.5-2.5 μm thick at mid-level, the apical cells 3-6 μm wide; hypothecium colourless. Asci 8-spored, cylindrical-clavate, Teloschistes-type. Ascospores 1-septate, polarilocular, hyaline, ellipsoid, (9-)10-13(-15) x (4.5-)5.5-7.5(-9) μm, the septum (3-)4-5.5 μm thick (c. 1/3 of spore length), the wall angular. Pycnidia immersed, orange. Conidia bacilliform to narrowly ellipsoid, (1.5-)2-3.5 x 1-1.5 μm. 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 species of the F. citrina group with thalli developing coarse blastidia in the centre, distinctly lobate margins, and common apothecia; mainly on inland sun-exposed, hard siliceous, but usually base-rich rock faces, occasionally on pure limestone and concrete as well. The sample from Sicily was collected on Mt. Etna near Linguaglossa, at 850 m, on concrete. Probably much more widespread in Italy, frequently subsumed under F. citrina s.lat.
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)
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: extremely 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


Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.


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



Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.



Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.



Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19573], Austria, Stiria, distr. Feldbach, Riegersburg, alt. 400 m, ad saxa andesitica sub arcem. Leg. G. Kantvilas, H. Mayrhofer et A. Vezda, 22.09.1990. VEZDA: LICHENES SELECTI EXSICCATI NR. 2470.
as Caloplaca citrina var. arcis