Kuettlingeria albolutescens (Nyl.) I.V. Frolov, Vondrák & Arup

in Frolov & al., J. Syst. Evol. 59, 3: 468, 2020 . Basionym: Lecanora albolutescens Nyl. - Flora, 64: 127, 1909.
Synonyms: Callopisma albolutescens (Nyl.) Walt. Watson; Caloplaca albolutescens (Nyl.) H. Olivier; Placodium albolutescens (Nyl.) A.L. Sm.; Pyrenodesmia albolutescens (Nyl.) S. Y. Kondr.
Distribution: N - Frl, Piem (TO 3078). C - Tosc (Frolov & al. 2020). S - Si (Herb. Vondrák 10862).
Description: Thallus crustose-leprose, episubstratic, granular and powdery, up to 100 μm thick, not lobed at margins, completely ecorticate, whitish to grey, forming orbicular patches to a few cm in diam., several thalli often merging to cover larger surfaces. Center of thallus covered in abundant, grey, diffuse, granular soredia. Apothecia often numerous, sessile, 0.5-1 mm across, with a flat, rust-red disc, a prominent, orange (paler than disc) proper margin, and sometimes a thin, soon disappearing thalline margin. Epithecium brown-orange, K+ red; hymenium and hypothecium colourless; paraphyses c. 1.5 μm thick at base, the apical cells up to 3 μm wide. Asci 8-spored, clavate, Teloschistes-type. Ascospores 1-septate, polarilocular, hyaline, ellipsoid, 13-18 x 7-10 μm, the septum often <4 μm thick (up to 1/4-1/5 of spore lenght). Photobiont chlorococcoid. Spot tests: thallus K- or K+ violet in sorediate parts, C-, KC-, P-; apothecia K+ red. Chemistry: soredia with Sedifolia-grey pigment: apothecia with apothecia with chlorinated anthraquinones in both margin and disc: 7-chloroemodin (major), fragilin and emodin (minor), sometimes traces of parietin.
Note: this species is ecologically and morphologically very similar to K. teicholyta. K. albolutescens has a thin leprose thallus, the cortex is absent or poorly differentiated at margins, and marginal lobes are missing, whereas K. teicholyta has a rather thick thallus ehich is sorediate in the centre, while marginal lobes are more or less present and the cortex is well-developed, at least marginally.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)

Commonnes-rarity: (info)

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


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (2267)
2001/11/19



Domenico Puntillo; Owner: Domenico Puntillo
Italy



Pier Luigi Nimis; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Val Rosandra, San Lorenzo near Belvedere
11/02/2017



Pier Luigi Nimis; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Val Rosandra, San Lorenzo near Belvedere
11/02/2017



Pier Luigi Nimis; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Val Rosandra, San Lorenzo near Belvedere
11/02/2017



Pier Luigi Nimis; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Val Rosandra, San Lorenzo near Belvedere
11/02/2017



Felix Schumm - CC BY-SA 4.0
[19546], Tunesien, Karthago, an Mauern der Thermen des Antonius Pius. Leg. F. Schumm 11.03.1973, det. A. Aptroot 2016.



Felix Schumm - CC BY-SA 4.0
[19546], Tunesien, Karthago, an Mauern der Thermen des Antonius Pius. Leg. F. Schumm 11.03.1973, det. A. Aptroot 2016.



Felix Schumm - CC BY-SA 4.0
[19546], Tunesien, Karthago, an Mauern der Thermen des Antonius Pius. Leg. F. Schumm 11.03.1973, det. A. Aptroot 2016.



Felix Schumm - CC BY-SA 4.0
[19546], Tunesien, Karthago, an Mauern der Thermen des Antonius Pius. Leg. F. Schumm 11.03.1973, det. A. Aptroot 2016.



Felix Schumm - CC BY-SA 4.0
[19546], Tunesien, Karthago, an Mauern der Thermen des Antonius Pius. Leg. F. Schumm 11.03.1973, det. A. Aptroot 2016.



Felix Schumm - CC BY-SA 4.0
[19546], Tunesien, Karthago, an Mauern der Thermen des Antonius Pius. Leg. F. Schumm 11.03.1973, det. A. Aptroot 2016.



Felix Schumm - CC BY-SA 4.0
[19546], Tunesien, Karthago, an Mauern der Thermen des Antonius Pius. Leg. F. Schumm 11.03.1973, det. A. Aptroot 2016.