ITALIC 7.0

Toninia tristis subsp. pseudotabacina Timdal

Opera Bot., 110: 113-114, 1991.

Synonyms:

Distribution: N - Ven, TAA, Lomb, Lig. C - Sar.

Description: Thallus squamulose, chestnut brown to dark brown, shiny not forming cushions. Squamules contiguous to scattered, up to 3(-4) mm in diam., bullate, but often with a central depression, with punctiform impressions developing into pores; lower surface pale. Upper cortex 40-160 µm thick, including an up to 100 µm thick epinecral layer, without crystals; algal layer continuous; medulla white, without crystals. Apothecia lecideine, sessile, strongly constricted at base, up to 2 mm across, with a black, flat to convex, smooth disc, and a distinct, smooth proper margin concolorous with disc. Proper exciple medium to dark brown (sometimes with a green tinge) in the rim, usually paler brown within, K-, N- or N+ violet, lacking crystals; epithecium brownish to bright green, K-, N+ violet; hymenium colourless, 60-70 µm high; paraphyses not coherent, anastomosing, distinctly thickened above; hypothecium brownish. Asci 8-spored, clavate, surrounded by a gelatinous I+ blue coat, with a well-developed I+ blue tholus with a I+ darker blue tube and a well-developed ocular chamber, Bacidia-type. Ascospores 1-celled, hyaline, ellipsoid, 10-15.5 x 4.5-6.5 µm. Pycnidia dark, immersed. Conidia filiform. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: thallus with terpenoids.

Note: a mainly Mediterranean-Macaronesian taxon found on soil over calcareous substrata, sometimes reaching the oromediterranean belt.

Growth form: Squamulose

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: very rare

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

Manuel Gil

Spain, Canary Islands, Lanzarote

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

Herbarium: TSB (4822)
2003/03/06

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

Herbarium: TSB (4822)
2003/03/06

P.L. Nimis CC BY-SA 04

TSB 4763

Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder

Canary Islands; La Gomera--MS; se of Imada: El Azadoe.

Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder

Canary Islands; La Gomera--MS; se of Imada: El Azadoe.

Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder

Canary Islands; La Gomera--MS; se of Imada: El Azadoe.

Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder

Canary Islands; La Gomera--MS; se of Imada: El Azadoe.

Ulrich Kirschbaum

Spain: Canary Islands: La Gomera