ITALIC 7.0

Solorina bispora Nyl. var. subspongiosa (Zschacke) Frey

Ergebn. Wiss. Unters. Schweiz. Nationalparks, n.F. , 3, 27: 378, 1952.. Basionym: Solorina bispora f. subspongiosa Zschacke - in Zahlbr., Cat. Lich. Univ., 8: 314, 1932.

Synonyms:

Distribution: N - Ven (Nascimbene & al. 2021).

Description: Thallus subcrustose, poorly developed, sometimes evident as a continuous or lacerate, 0.5-1 mm wide collar around the apothecia, sitting on a dark layer of coralloid to nodulose external cephalodia containing Nostoc, which become subgelatinous when wet. Apothecia frequent, semi-immersed, 2-5 mm across, with a brown to brown-black, concave disc, without a thalline margin. Epithecium brownish; hymenium and hypothecium colourless; paraphyses coherent, not anastomosing, simple, not apically thickened. Asci 2-spored, clavate, fissitunicate, the apex of the endoascus with a K/I+ blue ring-shaped structure, Peltigera-type. Ascospores 1-septate, constricted at septum, dark brown, ellipsoid to broadly fusiform, 60-105 x 25-55 μm, with a thick, ornamented wall. Photobiont chlorococcoid (Coccomyxa) in the green parts of thallus, but mostly Nostoc in the cephalodia forming most of the visible thallus. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: this is the morph with a dominant cyanobacterial photobiont in the S. bispora-group; on basic to subneutral soil at high elevations; not always distinguished, and probably more widespread in the Alps.

Growth form: Foliose

Substrata: soil, terricolous mosses, and plant debris

Photobiont: green algae other than Trentepohlia (primary); cyanobacteria, filamentous (e.g. Nostoc, Scytonema) (secundary, e.g. in cephalodia)

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: very rare

Subalpine belt: very rare

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

Curtis Randall Björk CC BY-SA 4.0

Canada, Northwest Territories, near MacKay Lake as S. bispora

Curtis Randall Björk

Canada, Northwest Territories, near MacKay Lake
as S. bispora

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1338&lang=en

France, Queyras