ITALIC 8.0

Opegrapha phaeophysciae R. Sant., Diederich, Ertz & Christnach

in Ertz & al., Bibl. Lichenol., 91: 132, 2005.

Synonyms:

Distribution: C - Tosc (Brackel 2015, 2016), Laz (Brackel 2015, 2016). S - Camp (Brackel 2021).

Description: Thallus inapparent, not lichenized, the hyphae developing inside the thalli of Phaeophyscia-species. Apothecia rounded, 0.2-0.6 mm across, scattered to crowded, soon emergent, black, epruinose, with a flat to slightly convex, reticulate-fissured, often umbonate disc. Proper exciple brown-black, 20-40 μm thick; epithecium brownish, 15-20 μm high; hymenium colourless, 60-100 μm high, often with 1-3 columns of dark brown stromatic plectenchyma, I+ reddish, K/I+ blue; paraphysoids branched and anastomosing, 2-2.5 μm thick, the apical cells slightly swollen; subhymenium colourless, 10-15 μm high, I+ reddish , K/I+ blue; hypothecium brown-black. Asci 4-spored, narrowly clavate, fissitunicate, with a K/I+ blue ring-structure in tholus, Opegrapha-type. Ascospores (4-)6-septate, slightly constricted at septa, the median cell often somewhat elongated, hyaline but turning brown and warted when overmature, elongate ellipsoid, 21-28(-32) x 4-6 μm, with a c. 1 μm thick gelatinous perispore. Photobiont absent. Spot tests: K-, C-, KC-, P-. Chemistry: without lichen substances.

Note: this rare lichenicolous fungus (usually on Phaeophyscia) was reported from Japan, Russia, South Korea and the USA; the records from Italy, collected on Hyperphyscia, are new to Europe (see Brackel 2015).

Growth form: Lichenicolous fungus

Substrata: bark and rocks

Reproductive strategy: mainly sexual

paras Phaeophyscia spp. and Hyperphyscia adglutinata

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: extremely rare

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

A. Frisch, Y Ohmura, Bull. Natl. Mus. Nat. Sci., Ser. B, 39(1), pp. 1 1–14, 2013

Source: A. Frisch, Y Ohmura, Bull. Natl. Mus. Nat. Sci., Ser. B, 39(1), pp. 1 1–14, 2013