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, glossy, not forming cushions, the squamules contiguous to scattered, up to 3(-4) mm wide, 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 (green pigment), 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:

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(info)

Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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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


Manuel Gil
Spain, Canary Islands, La Palma


Manuel Gil
Spain, Canary Islands, La Palma


Manuel Gil
Spain, Canary Islands, La Palma


Manuel Gil
Spain, Canary Islands, La Palma