ITALIC 7.0

Gyalidea lecideopsis (A. Massal.) Vězda var. lecideopsis

Lettau ex Vezda, Folia Geobot. Phytotaxon., 1: 312, 1966. Basionym: Gyalecta lecideopsis A. Massal. - Miscell. Lichenol.: 39, 1856.

Synonyms: Gyalecta hyalina Hepp; Gyalecta stigmatoides (Nyl.) Boistel; Gyalidea albocrenata (Arnold) Lettau; Lecidea stigmatoides Nyl.

Distribution: N - Ven (Lazzarin 2000b), TAA (Nascimbene & al. 2022), Piem (Isocrono & al. 2004).

Description: Thallus crustose, endosubstratic or thinly episubstratic, often inconspicuous and poorly evident, smooth or finely granulose, grey-white to yellowish grey. Apothecia 0.2-0,6 mm across, with a concave, dark reddish brown, dark brown to black disc and a smooth, crenulate or radially split, mostly black to brown proper margin (often turning pure white in dry sites). Proper exciple 50-60 µm wide laterally, dark olive-brown in outer part, colourless or paler within; epithecium dark brown to brown-black; hymenium colourless or pale yellowish brown, 100-130 µm high; paraphyses mostly simple, to 1 µm thick, not swollen at apex; hypothecium colourless or pale yellowish brown. Asci 6-8-spored, thin-walled, apically thickened, with a small ocular chamber. Ascospores muriform, hyaline, ovoid to broadly ellipsoid, (17-)22-30(-35) x (10-)12-15 µm, without a distinct perispore. Photobiont chlorococcoid, Cystococcus/Leptosira-like. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a northern-montane species found on limestone, dolomite, calciferous schists, on porous, damp faces; easily overlooked, but certainly rare.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: extremely rare

Oromediterranean belt: absent

Montane belt: extremely 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

Index Fungorum GBIF

P.L. Nimis CC BY-SA 4.0

TSB 14644

Pier Luigi Nimis - CC BY-SA 4.0

Herbarium: TSB (14644)