Protomicarea limosa (Ach.) Hafellner

in Hafellner & Türk, Stapfia, 76: 156, 2001. Basionym: Lecidea limosa Ach. - Lichenogr. Univ.: 182, 1810.
Synonyms: Lecidea borealis (Körb.) Anzi; Lecidea ementiens Nyl.; Lecidella borealis Körb.
Distribution: N - Frl (Tretiach & Hafellner 2000), Ven, TAA (Caniglia & al. 2002, Nascimbene & al. 2022), Lomb (Dalle Vedove & al. 2004), Piem (Isocrono & al. 2004), VA (Piervittori & Isocrono 1997, 1999), Emil (Dalle Vedove & al. 2002, Fariselli & al. 2020).
Description: Thallus crustose, episubstratic, subgelatinous when wet, whitish grey to grey, granulose to small-areolate, the areoles mostly small, almost granulose, 0.2-0.6 mm wide, but sometimes becoming verrucose and up to 1 mm wide, contiguous, forming a more or less compact crust, sometimes with a white prothallus. Apothecia biatorine, black, round, sessile, (0.4-)0.5-0.8(-1) mm across, with a strongly convex disc, without a proper margin. Epithecium deep bluish green, the colour often extending down to the upper part of the hymenium, of radially arranged hyphae, K-; hymenium 45-65 μm high, at least partially green in upper part, I+ red; paraphyses coherent, mostly simple, 1.2-2 μm thick, scarcely thickened at apex; hypothecium patchily reddish brown, K+ brownish-orange. Asci 8-spored, cylindrical-clavate, the I+ blue tholus with a wide, I+ dark blue tube structure that expands towards the top, without a pale axial body, Psora-type. Ascospores 1-celled, hyaline, narrowly ellipsoid to fusiform, (8-)10-14(-15) x 3-4.5(-5) μm. Conidia bacilliform, 6-7 x c. 1.5 μm. Photobiont chlorococcoid, the cells 7-12 μm wide. Spot tests: thallus K-, C-, KC-, P+ orange-red. Chemistry: pannarin and triterpenoids.
Note: an arctic-alpine to boreal-montane, circumpolar lichen found on naked soil in sites with a long snow-lie, in clearings of Alpine grasslands, more rarely on moribund bryophytes and plant debris: in the Alps it can reach the nival belt.
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

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

pH of the substrata:

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(info)

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 43942



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (21126)
2003/03/06



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (25132)
2003/03/06


Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php


Pier Luigi Nimis - CC BY-SA 4.0
Herbarium: TSB 9156 as Lecidea ementiens



Felix Schumm – CC BY-SA 4.0
[20325], Austria, Kärnten, Eastern Alps, High Tauern, Goldberg Group, High Tauern Nationalpark, 7 km NW of the centre of Mallnitz, path from Tauernkreuz to Hagener Hütte, 47°01'22'' N, 13°05'32'' E, 2300 m, on soil. Leg. R. Türk (56664), 30.7.2016, det R. Türk. LICHENOTHECA GRAECENSIS NR. 471.



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (9156)
2003/03/19



Felix Schumm – CC BY-SA 4.0
[20325], Austria, Kärnten, Eastern Alps, High Tauern, Goldberg Group, High Tauern Nationalpark, 7 km NW of the centre of Mallnitz, path from Tauernkreuz to Hagener Hütte, 47°01'22'' N, 13°05'32'' E, 2300 m, on soil. Leg. R. Türk (56664), 30.7.2016, det R. Türk. LICHENOTHECA GRAECENSIS NR. 471.



Felix Schumm – CC BY-SA 4.0
[20325], Austria, Kärnten, Eastern Alps, High Tauern, Goldberg Group, High Tauern Nationalpark, 7 km NW of the centre of Mallnitz, path from Tauernkreuz to Hagener Hütte, 47°01'22'' N, 13°05'32'' E, 2300 m, on soil. Leg. R. Türk (56664), 30.7.2016, det R. Türk. LICHENOTHECA GRAECENSIS NR. 471.



Felix Schumm – CC BY-SA 4.0
[20325], Austria, Kärnten, Eastern Alps, High Tauern, Goldberg Group, High Tauern Nationalpark, 7 km NW of the centre of Mallnitz, path from Tauernkreuz to Hagener Hütte, 47°01'22'' N, 13°05'32'' E, 2300 m, on soil. Leg. R. Türk (56664), 30.7.2016, det R. Türk. LICHENOTHECA GRAECENSIS NR. 471.



Felix Schumm – CC BY-SA 4.0
[20325], Austria, Kärnten, Eastern Alps, High Tauern, Goldberg Group, High Tauern Nationalpark, 7 km NW of the centre of Mallnitz, path from Tauernkreuz to Hagener Hütte, 47°01'22'' N, 13°05'32'' E, 2300 m, on soil. Leg. R. Türk (56664), 30.7.2016, det R. Türk. LICHENOTHECA GRAECENSIS NR. 471.



Pier Luigi Nimis - CC BY-SA 4.0
TSB 41305



Pier Luigi Nimis - CC BY-SA 4.0
TSB 43942



Pier Luigi Nimis - CC BY-SA 4.0
TSB 43942



Pier Luigi Nimis - CC BY-SA 4.0
TSB 43942



Felix Schumm – CC BY-SA 4.0
[20325], Austria, Kärnten, Eastern Alps, High Tauern, Goldberg Group, High Tauern Nationalpark, 7 km NW of the centre of Mallnitz, path from Tauernkreuz to Hagener Hütte, 47°01'22'' N, 13°05'32'' E, 2300 m, on soil. Leg. R. Türk (56664), 30.7.2016, det R. Türk. LICHENOTHECA GRAECENSIS NR. 471.


Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
Central Europe; Austria: Alps. (Collected by F. Richter).