ITALIC 8.0

Toninia tristis subsp. thalloedaemiformis (Szatala) Timdal

Opera Botanica, 110: 115, 1991. Basionym: Lecidea thalloedaemiformis Szatala - Borbásia, 3: 125, 1941

Synonyms:

Distribution:

Description: Thallus squamulose, chestnut brown to dark brown, glossy, the squamules contiguous to scattered, up to 4(-5) mm wide, bullate, with punctiform impressions developing into pores, often forming cushions on rocks; 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 outer part, usually paler brown within, K-, N- or N+ violet (green pigment), lacking crystals; epithecium olivaceous green 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, 8-12 x 4-5 µm. Pycnidia dark, immersed. Conidia filiform. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: thallus with terpenoids.

Note: this subspecies, which grows on steeply inclined calciferous rocks, has a mainly eastern Mediterranean distribution, being known from the Balkan Peninsula, Crete and the Peloponnesus, but is also known from the Southern Alps of France; to be looked for in Italy.

Growth form: Squamulose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

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

Einar Timdal - Source: http://nhm2.uio.no/lav/web/index.html - CC BY-NC