ITALIC 8.0

Schadonia fecunda (Th. Fr.) Vězda & Poelt

in Hawksworth & al., Lichenologist, 12: 107, 1980. Basionym: Lopadium fecundum Th. Fr. - N. Acta Reg. Soc. Sci. Upsal., ser. 3, 3: 302, 1861.

Synonyms: Diplotomma sociale (Körb.) Jatta; Lopadium sociale Körb.

Distribution: N - TAA, Lomb, Piem (Isocrono & al. 2004).

Description: Thallus crustose, episubstratic, greyish brown to pale brown, thin, continuous, granulose or minutely verrucose, not markedly changing colour when wet. Apothecia lecideine, black or brown-black, sessile, constricted at base, 0.5-1.5 mm across, with a matt, concave to finally very slightly convex, smooth disc and a thick, smooth, often inrolled and shiny proper margin. Exciple paraplectenchymatous, of radially arranged hyphae, dark red-brown in outer part, paler within; epithecium dark brown, K+ purplish brown, N+ violet; hymenium colourless or partly yellowish brown, 150-175 µm high; paraphyses richly branched and anastomosing, slender, 1-1.5 µm thick, only slightly thicker at apex; hypothecium dark brown, K+ purplish brown. Asci (4-)8-spored, clavate to cylindrical-clavate, the apical dome K/I+ dark blue with a pale, conical-pointed apical cushion (axial mass), the wall I-, but the thin outer gel I+ blue, Bacidia-type. Ascospores strongly muriform, hyaline, broadly to narrowly ellipsoid, (22-)30-50(-60) x 10-18(-20) µm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a mainly arctic-alpine species found on mosses and plant remains over acid siliceous substrata near and above treeline. Probably restricted to the Alps in Italy.

Growth form: Crustose

Substrata: soil, terricolous mosses, and plant debris

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: very rare

Subalpine belt: very 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 04

GZU (229-81)

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

Herbarium: GZU (229-81)
2003/04/28