Clauzadea immersa (Hoffm.) Hafellner & Bellem.

in Hafellner, Beih. Nova Hedwigia, 79: 322, 1984. Basionym: Verrucaria immersa Hoffm. - Descr. Adumbr. Plant. Lich., 1, 2: 58, 1789.
Synonyms: Biatora immersa (Hoffm.) P. Syd.; Hymenelia immersa sensu Jatta; Lecidea calcivora (Schaer.) A. Massal.; Lecidea immersa (Hoffm.) Ach.; Lecidella immersa (Hoffm.) Körb.; Lichen immersus Weber nom. illegit.; Protoblastenia immersa (Hoffm.) J. Steiner
Description: Thallus crustose, fully endosubstratic, white, pale grey or pale ochre-coloured, usually poorly evident and weakly differentiated, filled with crystals of calcium oxalates, rarely delimited by a dark prothalline line. Apothecia lecideine, 0.3-0.8 mm across, deeply immersed in pits in the rock, with a flat, dark brown to black (turning slightly reddish brown and then rapidly black when wet), rarely thinly white-pruinose disc, and a thin, black, usually persistent proper margin. Proper exciple usually thin and poorly developed, 20-100 µm thick laterally, much thinner at base, reddish brown in outer part, almost colourless within, of radially arranged hyphae; epithecium yellowish brown to brown; hymenium colourless, 55-150 µm high, I+ reddish and partly pale blue; paraphyses sparingly branched and anastomosing, septate but not moniliform, 2-4.5 µm thick at mid-level, scarcely or not swollen at apex; hypothecium colourless to pale brown not narrowly stem-like, I-. Asci 8-spored, elongate-clavate, with a thin, outer amyloid layer and a thickened tholus penetrated by a pore, the sides of which stain I/KI+ deep blue, Porpidia-type. Ascospores 1-celled, hyaline, ellipsoid, 10-16(-19) x 6-9 µm, with a > 1 µm thick, gelatinous perispore when young, the wall of old spores with a warted ornamentation. Pycnidia black, laminal or marginal and arranged in rows, partially immersed. Conidia bacilliform 3-8 x 1-2 µm, with apical and lateral conidiogenesis. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Crustose endolithic
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

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

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Altitudinal distribution:

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Rarity

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Predictive map

P.L. Nimis CC BY SA 4.0
TSB 15561


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (15561)
2001/11/23


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (22347)
2001/12/09


Pier Luigi Nimis - CC BY-SA 4.0
TSB 15561


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_C/Textes_C2/Clauzadea_immersa.htm
France, Session AFL dans le Lot - Moulin du Saut, Gramat
25/5/2015


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_C/Textes_C2/Clauzadea_immersa.htm
France, Session AFL dans le Lot - Moulin du Saut, Gramat
25/5/2015


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_C/Textes_C2/Clauzadea_immersa.htm
France, Session AFL dans le Lot - Moulin du Saut, Gramat
25/5/2015


Marta González - Centro de EStudios Micologicos Asturianos
Sotres (Cabrales-Asturias), 11-III-2025, en rocas calizas a 1.100 m de altitud.


Marta González - Centro de EStudios Micologicos Asturianos
Sotres (Cabrales-Asturias), 11-III-2025, en rocas calizas a 1.100 m de altitud.


Marta González - Centro de EStudios Micologicos Asturianos
Sotres (Cabrales-Asturias), 11-III-2025, en rocas calizas a 1.100 m de altitud.


Marta González - Centro de EStudios Micologicos Asturianos
Sotres (Cabrales-Asturias), 11-III-2025, en rocas calizas a 1.100 m de altitud.


Marta González - Centro de EStudios Micologicos Asturianos
Sotres (Cabrales-Asturias), 11-III-2025, en rocas calizas a 1.100 m de altitud.


Marta González - Centro de EStudios Micologicos Asturianos
Sotres (Cabrales-Asturias), 11-III-2025, en rocas calizas a 1.100 m de altitud.


Marta González - Centro de EStudios Micologicos Asturianos
Sotres (Cabrales-Asturias), 11-III-2025, en rocas calizas a 1.100 m de altitud.


Marta González - Centro de EStudios Micologicos Asturianos
Sotres (Cabrales-Asturias), 11-III-2025, en rocas calizas a 1.100 m de altitud.


Marta González - Centro de EStudios Micologicos Asturianos
Sotres (Cabrales-Asturias), 11-III-2025, en rocas calizas a 1.100 m de altitud.


Marta González - Centro de EStudios Micologicos Asturianos
Sotres (Cabrales-Asturias), 11-III-2025, en rocas calizas a 1.100 m de altitud.


Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, in M. Baldo 1855
As Lecidea immersa tuberculata