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. et al. MycoKeys 11: 33–61, 2015

holotype