ITALIC 8.0

Verrucula biatorinaria (Zehetl.) Nav.-Ros. & Cl. Roux

in Navarro-Rosinés & al., Bull. Soc. linn. Provence, 58: 153, 2007. Basionym: Verrucaria biatorinaria Zehetl. - Nova Hedwigia, 29: 721, 1978.

Synonyms:

Distribution: N - Ven (Navarro-Rosinés & al. 2007), TAA, Piem (TSB 34037). C - Abr (Nimis & Tretiach 1999, Gheza & al. 2021), Mol (Nimis & Tretiach 1999, Caporale & al. 2008). S - Camp (Aprile & al. 2003b).

Description: Thallus crustose, areolate-subsquamulose or verrucose-areolate, forming 3-20(-30) mm wide patches on the thalli of Calogaya biatorina. Areoles crowded, rounded or irregularly polygonal, (0.3-)0.6-1.6(-2) mm wide, 0.4-0.8 mm thick, flat to convex, attached by the central part and sometimes substipitate, grey brown with black margins and lower surface. Cortex 8-15 µm thick, of 1-3 layers of pale brown cells, rarely covered with a thin, discontinuous epinecral layer; medulla white, dense, filled by crystals and substrate particles, I-. Perithecia black, 0.15-0.3 mm across, globose, immersed in the areoles. Involucrellum absent; exciple 15-20 µm thick, the wall paraplectenchymatous, colourless except around the ostiole; hymenium colourless, I+ reddish; hamathecium of periphyses along the ostiolar channel, pseudoparaphyses in upper part of the perithecium, and paraphyses disappearing early; pseudoparaphyses 18-27 x 2,5-4 μm. Asci 8-spored, clavate, bitunicate, with a thin tholus reacting I-, Verrucaria-type. Ascospores 1-celled, hyaline, ellipsoid, (8.5-)11-13.5(-16) x 6-9.5 μm. Pycnidia black, globose immersed, Dermatocarpon-type, the wall colourless except at the brown apex. Conidia simple, bacilliform, 4.5-6 x 1-1.5 μm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a lichenicolous lichen growing on the thalli of Calogaya biatorina; certainly more widespread in the Alps and along the Apennines.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

paras Calogaya biatorina

Commonnes-rarity: (info)

Alpine belt: rare

Subalpine belt: rather rare

Oromediterranean belt: absent

Montane belt: very rare

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: absent

Dry mediterranean belt: absent

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 04

TSB 21536

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

Herbarium: TSB (21536)
2001/12/03

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

Herbarium: TSB (21536)
2001/12/03