ITALIC 8.0

Caloplaca fuscoblastidiata van den Boom & Etayo

Mycotaxon, 56: 126, 1995.

Synonyms:

Distribution:

Description: Thallus crustose, episubstratic, continuous to rimose-areolate, pale grey to olive grey, mostly with a brownish tinge, blastidiate, forming up to several cm wide, irregular patches. Blastidia globular, club-shaped or cylindrical, sometimes flattened, often coralloid, 0.05-0.15(-0.25) mm thick, scattered to crowded and then forming a thick crust. Cortex with an olive to brownish pigment, K+ violet, N-. Apothecia usually present, dull to dark brown, somehow shiny, up to 0.8 mm across, with a flat to slightly convex disc, a thin proper margin and a soon excluded thalline margin. Proper exciple prosoplectenchymatous, brownish in outer part, colourless within; epithecium brown, without crystals, K-, N-; hymenium colourless, 60-75 µm high; paraphyses simple or sparingly branched, 1.5-2.5 µm thick, the apical cells 3-5 µm wide; hypothecium colourless. Asci 8-spored, clavate, functionally unitunicate, apically thickened with a broad internal beak, the inner part of apex and external cap I+ blue, Teloschistes-type. Ascospores 2-celled, polarilocular, hyaline, 10-14 x 5.5-7 µm, the equatorial thickening (“septum”) 4-6 µm. Pycnidia blackish olive. Conidia ellipsoid to ovoid, 3-4 x 0.8-1 µm. Photobiont chlorococcoid. Spot tests: thallus and apothecia K-, C-, KC-, P- (in section the thallus reacts K+ violet). Chemistry: thallus with the Sedifolia-grey pigment; apothecia without anthraquinones.

Note: a recently-described epiphytic species, to be looked for in Mediterranean Italy.

Growth form: Crustose

Substrata: bark

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: extremely rare

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