ITALIC 8.0

Steinia geophana (Nyl.) Stein

in Cohn, Krypt.-Fl. von Schlesien, 2: 209, 1879. Basionym: Lecidea geophana Nyl. - Lichenes Scand.: 212, 1861.

Synonyms: Biatora geophana (Nyl.) Th. Fr.; Biatorella geophana (Nyl.) Rehm; Lecidea boreella Nyl.; Lecidea trichogena Norman; Pleolecis geophana (Nyl.) Clem.; Steinia luridescens Körb.

Distribution: N - TAA (Nascimbene & al. 2007b).

Description: Thallus crustose, episubstratic, pale grey to dull grey-green, thin and film-like, subgelatinous when wet, continuous, more or less ephemeral, with sparse goniocysts. Apothecia biatorine, sessile, 0.2-0.6 mm across, with a dark brown to black-brown, strongly convex, rough disc, without a distinct proper margin. Proper exciple poorly developed, of a few thread-like hyphae resembling paraphyses; epithecium reddish brown to brown, with granules not dissolving in K; hymenium colourless to brownish, 65-80 µm high, I+ pale blue; paraphyses scarce, immersed in the hymenial gel, simple, not apically thickened, 0.5-1 µm thick; hypothecium brownish, of vertically arranged hyphae. Asci (12-)16-spored, clavate-cylindrical, thin-walled, without a tholus, K/I + blue, with a distinct apical pore. Ascospores 1-celled, hyaline, globose or subglobose, 4-6(-8) x 4-6 µm, the wall c. 0.5 µm thick, without a perispore. Pycnidia rare, dark, immersed, the conidiogenous cells elongate-ampulliform, enteroblastic. Conidia acrogenous, ellipsoid, hyaline, 1-1.5 µm long. Photobiont chlorococcoid, with ellipsoid cells. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances

Note: an ephemeral, facultatively lichenised species of moist, slightly calciferous soil, rotten wood, small pebbles, terricolous Peltigera- and Solorina-species and plant debris, often found in rather disturbed habitats such as on earth banks along white roads and on track sides; perhaps overlooked, at least in the Alps, but certainly never common.

Growth form: Crustose

Substrata: lignum, soil, terricolous mosses, and plant debris

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Pioneer species

Commonnes-rarity: (info)

Alpine belt: rare

Subalpine belt: rare

Oromediterranean belt: absent

Montane belt: very rare

Submediterranean belt: extremely rare

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

Enrique Rubio - https://www.centrodeestudiosmicologicosasturianos.org/?p=48838

Spain, Villamañán (León), 24.03.2022, on partially rotten, very moist wood of Populus alba, leg. Javier Mateos, det. Javier Etayo, ERD-9319.

Enrique Rubio - https://www.centrodeestudiosmicologicosasturianos.org/?p=48838

Spain, Villamañán (León), 24.03.2022, on partially rotten, very moist wood of Populus alba, leg. Javier Mateos, det. Javier Etayo, ERD-9319.

Enrique Rubio - https://www.centrodeestudiosmicologicosasturianos.org/?p=48838

Spain, Villamañán (León), 24.03.2022, on partially rotten, very moist wood of Populus alba, leg. Javier Mateos, det. Javier Etayo, ERD-9319.

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

Herbarium: TSB (11289)
2001/11/30