ITALIC 7.0

Staurothele nantiana (B. de Lesd.) Zschacke

Hedwigia, 60: 4, 1918.. Basionym: Polyblastia nantiana B. de Lesd. - Bull. Soc. Bot. Fr., 56: 174, 1909.

Synonyms:

Distribution:

Description: Thallus crustose, episubstratic or partly endosubstratic, rather thick, the surface folded-verrucose, grey-white, farinose. Pseudocortex of anticlinally oriented hyphae, algae arranged in columns; medulla with oil hyphae. Perithecia 0.5-0.7 mm across (in section), black, immersed into c. 1 mm wide, hemispherical, sometimes apically flattened thalline warts, the ostiolar region being the only one visible from above. Exciple thick, brown-black throughout, 0.5-0.7 mm across; hymenial gel I+ red (I+ blue at very low concentrations of iodine), K/I+ blue; hymenial algae almost isodiametric, 3-4 μm wide; hamathecium of periphyses and periphysoids, interascal filaments absent. Asci 8-spored, clavate, the wall thickened above, with an ocular chamber, after dehiscence with a delicate extruded endotunica, I-, K/I-. Ascospores muriform, colourless, turning yellowish brown at maturity, ellipsoid, 42-68 x 18-28 μm. Photobiont chlorococcoid, present in both thallus and hymenium. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: on occasionally submerged limestone rocks; all known records are from SW Europe, including the Western Alps (France); to be looked for in the Italian Alps.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: extremely rare

Subalpine belt: extremely rare

Oromediterranean belt: absent

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

Zschacke, H. (1934) Epigloeaceae, Verrucariaceae und Dermatocarpaceae. In: Dr. L. Rabenhorst‘s Kryptogamen-Flora, Band 9, Abt. 1, Teil 1. Akademische Verlagsgesellschaft, Leipzig, 695 pp. - Public Domain