ITALIC 7.0

Agonimia globulifera M. Brand & Diederich

in Sérusiaux & al., Lejeunia, 162: 8, 1999.

Synonyms:

Distribution: N - Piem (Ravera & al. 2021). C - Laz (Sérusiaux & al. 1999). S - Bas (Hafellner 2014b)

Description: Thallus crustose, episubstratic, minutely granulose, the granules (goniocysts) 0.02-0.06 mm wide, lobulate-digitate, often aggregated into 0.07-0.24 μm wide, black, glossy, sterile globules, the cortical cells colourless, minutely papillate. Perithecia rare, black, subglobose to pyriform, superficial or partly immersed, 0.25-0.45(-0.6) μm across, without involucrellum. Exciple 3-layered, with an outer layer of rounded, heavily pigmented cells, a median layer of similar, but unpigmented cells, and an inner layer of elongated, colourless cells; hamathecium of periphyses and periphysoids, interascal filaments absent; hymenial gel hemiamyloid. Asci 8-spored, clavate, thin-walled, fissitunicate with a very thin exoascus, surrounded by a hemiamyloid gel (K/I+ blue). Ascospores strongly muriform, with (22-)40-55 cells visible in optical view, hyaline, ellipsoid, (32-)41–54 x 15–26 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a species growing on soil, plant debris and mosses in dry calcareous grasslands, mostly below the subalpine belt; perhaps more widespread in Italy. The sterile glossy black globules are diagnostic, while ascomata are rare and dull black.

Growth form: Crustose

Substrata: soil, terricolous mosses, and plant debris

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: very rare

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: very 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

Index Fungorum GBIF

Source: http://fungi.myspecies.info/file/6201 - CC BY-NC

Curtis Randall Björk – CC BY-SA 4.0

British Columbia, near Dunn Peak On phyllite cliff in lower subalpine forest 09. 2011