ITALIC 8.0

Sarcogyne algoviae H. Magn.

Rabenh. Krypt.-Flora, 9, 5, 1: 57, 1935.

Synonyms: Biatorella algoviae (H. Magn.) Zahlbr.

Distribution: N - Piem (TSB 34087).

Description: Thallus crustose, thinly episubstratic, whitish, ecorticate, consisting of gelatinized hyphae with scattered algae covering the substrate between dispersed apothecia. Apothecia lecideine, 0.7-1.5(-2) mm across, with a dark brown to black (brown-red when moist), but usually bluish-pruinose disc, and a 0.1-0.15 mm thick, raised, usually persistent proper margin. Proper exciple subparaplectenchymatous, of radiating hyphae with swollen and dark brown tips, the rim black, carbonized, sharply delimited from the pale inner part; epithecium brown, 10-15 μm high; hymenium colourless, 85-100(-130) µm high, euamyloid, persistently IKI+ dark blue; paraphyses coherent, simple to sparingly branched, septate, 2-2.5 μm thick, the apical cells 3-4 μm wide; hypothecium colourless, with large crystals. Asci c. 50-spored, cylindrical-clavate, 60-90 x 17-33 μm, strongly thickened at apex, the apical dome K/I-, the outer coat K/I+ blue. Ascospores 1-celled, hyaline, broadly ellipsoid, (5-)7-10(-11.5) x 3-3.5(-4) μm, most of them c. 7 x 3 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: on non- or weakly calciferous, mostly dolomitic rocks in sunny situations, with optimum above treeline, reaching the nival belt in the Alps.

Growth form: Crustose endolithic

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: very rare

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

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

Source: Westberg M, Timdal E, Asplund J, Bendiksby M, Haugan R, Jonsson F, Larsson P, Odelvik G, Wedin M, Millanes AM (2015) New records of lichenized and lichenicolous fungi in Scandinavia. MycoKeys 11: 33-61. - CC BY-4.0

Sarcogyne algoviae. a Apothecia (S F122537) b Apothecia (S L2741, holotype) c Section of an apothecium showing a strongly carbonized margin and a colourless hypothecium (S F122537). Scale: 1 mm (a–b); 100 µm (c).