ITALIC 8.0

Arthonia peltigerina (Almq.) H. Olivier

Bull. Geogr. Bot., 27: 213, 1917. Basionym: Arthonia vagans var. peltigerina Almq. - K. Svenska Vetensk.-Akad. Handl., 17, 6: 50, 1880.

Synonyms: Bryostigma peltigerinum (Almq.) S.Y. Kondr. & Hur

Distribution: N - Frl (Hafellner 1999, Brackel 2016).

Description: Thallus inapparent, not lichenized, the hyphae developing inside old parts of thalli of Peltigera-species, the infected parts appearing bleached. Apothecia arthonioid, developing in the cortex of the host, more or less round, adnate, often grouped in subconcentric rings, 0.1-0.3 mm across, with a black, convex disc, without a proper margin. Proper exciple poorly developed; epithecium fuliginous brown, sometimes with a greenish tinge; hymenium colourless, I+ red, K/I+ blue; paraphysoids indistinct; hypothecium colourless or pale brown, I+ red, K/I+ blue; Asci 8-spored, broadly clavate to subglobose, semi-fissitunicate, with a large, non-amyloid apical dome, and a distinct ocular chamber, Arthonia-type. Ascospores 1-septate, hyaline, oblong, (10-)13-18(-20) x 4-6 µm, with a gelatinous sheath, sometimes slightly pointed at both ends. Photobiont absent. Spot tests: K-, C-, KC-, P-. Chemistry: without lichen substances.

Note: a lichenicolous fungus growing on the thalli of Peltigera-species, probably more widespread, especially in the Alps.

Growth form: Lichenicolous fungus

Substrata: soil, terricolous mosses, and plant debris

Reproductive strategy: mainly sexual

paras Peltigera spp.

Commonnes-rarity: (info)

Alpine belt: very rare

Subalpine belt: very rare

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

Index Fungorum GBIF

Smithsonian Institution, National Museum of Natural History, Department of Botany – https://mycoportal.org/portals/mycology/misc/201406/media_1402645109_web.jpg; CC BY-SA NC