ITALIC 8.0

Gyalecta friesii Körb.

Syst. Lich. Germ.: 173, 1855.

Synonyms: Gyalecta denudata Th. Fr.; Petractis friesii (Körb.) A. Massal.; Secoliga friesii (Körb.) A. Massal.

Distribution: N - Ven.

Description: Thallus crustose, whitish, pale grey-green or olive-grey, thin, more or less continuous, often granular-farinose. Apothecia without a thalline margin, sessile, strongly constricted at base, (1-)2-4(-5) mm across, with a concave to flat, orange-yellowish disc, and a thick, smooth, somewhat paler proper margin. Proper exciple prosoplectenchymatous, of radiating hyphae, brownish yellow in outer part, colourless within; epithecium colourless to yellowish; hymenium colourless, 80-105 μm high, the hymenial gel I+ pale blue; paraphyses simple to sparingly branched, 1.5-2 μm thick at mid-level, the apical cells to 3 μm wide; hypothecium colourless or pale yellow. Asci 8-spored, cylindrical to elongate-subclavate, thin-walled, the apex without a conical point, the wall K/I+ blue. Ascospores 3-septate, hyaline, narrowly ellipsoid to fusiform, (10-)14-20(-22) x (2.5-)3-4.5 μm. Photobiont trentepohlioid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a circumboreal-montane species growing on bryophytes and plant debris, more rarely on bark of conifers and on siliceous rocks, with optimum near or above treeline.

Growth form: Crustose

Substrata: soil, terricolous mosses, and plant debris

Photobiont: Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: extremely rare

Subalpine belt: extremely 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:

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

GZU Ref.Herb.Poelt (21-90)

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

Herbarium: GZU Ref.Herb.Poelt (21-90)
2003/04/28
apothecium