ITALIC 7.0

Staurothele rufa (A. Massal.) Zschacke

Hedwigia, 54: 190, 1913. Basionym: Polyblastia rufa A. Massal. - Ric. Auton. Lich. Crost.: 147, 1852.

Synonyms: Polyblastia scabrida (Anzi) Jatta; Staurothele rufa f. albescens Servít; Staurothele scabrida (Anzi) B. de Lesd.; Stigmatomma rufum (A. Massal.) Arnold; Stigmatomma rufum var. subathallinum (Arnold) Dalla Torre & Sarnth.; Thelotrema scabridum Anzi

Distribution: N - TAA (Nascimbene & al. 2022), Lomb (Lazzarin 2000b), Lig (Giordani & al. 2016). C - Tosc, Abr.

Description: Thallus crustose, episubstratic but thin and often indistinct, brownish to pale cream-coloured, more evident when wet. Perithecia black, immersed at base in shallow pits in the rock, forming conical-hemispherical projections 0.35-0.5 mm across, the surface naked, rough and sometimes with indistinct radial fissures. Exciple pale, except around the ostiole; involucrellum well-developed; hymenial gel I+ red (I+ blue at very low concentrations of iodine), K/I+ blue; hymenial algae isodiametrical to broadly ellipsoid, 1-1.5 times as long as wide, 2-5 μm wide; hamathecium of periphyses and periphysoids, interascal filaments absent. Asci 2-spored, clavate, the wall thickened above, with an ocular chamber, after dehiscence with a delicate extruded endotunica, I-, K/I-. Ascospores muriform, brown to dark brown, oblong-ellipsoid, (30-)36-40(-50) x 12-24 μm. Photobiont chlorococcoid, present in both thallus and hymenium. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: on more or less calciferous rocks in the mountains.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: rather rare

Subalpine belt: rather common

Oromediterranean belt: absent

Montane belt: 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

Herbarium samples

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