ITALIC 8.0

Clauzadea chondrodes (A. Massal.) Hafellner & Türk

Clauzade & Cl. Roux ex Hafellner & Türk, Stapfia, 76: 151, 2001. Basionym: Biatora chondrodes A. Massal. - Symmicta Lich.: 39, 1855.

Synonyms: Biatora cyclisca A. Massal.; Clauzadea cyclisca (A. Massal.) V. Wirth; Lecidea chondrodes (A. Massal.) Malbr.; Lecidea cyclisca (A. Massal.) Malbr.; Lecidea savonensis B. de Lesd.; Protoblastenia chondrodes (A. Massal.) Zahlbr.

Distribution: N - VG (Meyer 2002), Frl, Ven (Lazzarin 2000b, Meyer 2002, Watson 2014), TAA (Meyer 2002), Lomb, Emil (Fariselli & al. 2020), Lig (Meyer 2002). C - Tosc, Marc (Nimis & Tretiach 1999), Laz, Sar (Meyer 2002). S - Camp (Aprile & al. 2003b, Garofalo & al. 2010), Pugl, Si (Grillo 1998, Meyer 2002, Grillo & Caniglia 2004).

Description: Thallus crustose, usually episubstratic, generally rather thick, continuous, white, bluish white, or ochre-coloured, sometimes inapparent, often greenish or blue-green when wet, sometimes surrounded by a white prothallus. Medulla I-, filled with crystals of calcium oxalates. Apothecia lecideine to biatorine, round to irregular in outline, (0.3-)0.5-1.2 mm across, slightly immersed in the thallus to sessile, leaving distinct depressions when falling off, with a black (reddish-brown when moist), usually flat disc, and a very thin, soon excluded proper margin. Proper exciple dark red-brown in outer part, almost colourless within, of more or less radially arranged hyphae, 20-110 µm thick laterally; epithecium ochraceous to reddish brown; hymenium colourless, 65-132 µm high, I+ partly pale blue; paraphyses sparingly branched and anastomosing, septate but not moniliform, 4-5.5 µm thick at mid-level, scarcely swollen at apex; hypothecium colourless to pale brown in upper part, at least partially I+ blue. 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, (8-)13-18(-22) x 5-7(-10) µm, with a > 1 µm thick, gelatinous perispore when young, the wall of old spores not warted. Pycnidia black, laminal, immersed. Conidia bacilliform, 4-6 x 1-2 µm, with apical and lateral conidiogenesis. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a mainly temperate lichen found on limestone and dolomite, on surfaces with short water seepage after rain, often with colonies of cyanobacteria, but avoiding very dry situations; widespread and perhaps more common in Italy than the relatively few records would suggest.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: rather common

Submediterranean belt: rather rare

Padanian area: very rare

Humid submediterranean belt: rare

Humid mediterranean belt: rare

Dry mediterranean belt: rare

pH of the substrata:

1

2

3

4

5

(info)

Solar irradiation:

1

2

3

4

5

(info)

Aridity:

1

2

3

4

5

(info)

Eutrophication:

1

2

3

4

5

(info)

Poleotolerance:

0

1

2

3

(info)

Altitudinal distribution:

1

2

3

4

5

6

(info)

Predictive model

Herbarium samples

Index Fungorum GBIF

P.L. Nimis CC BY-SA 4.0

TSB 23514

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (23514)
2001/12/12

Pier Luigi Nimis - CC BY-SA 4.0

TSB 16791

Pier Luigi Nimis - CC BY-SA 4.0

TSB 16791