ITALIC 8.0

Verrucaria endocarpoides Servít

Preslia, 24: 357-358, 1952.

Synonyms:

Distribution: N - Frl (Breuss 2008, 2008b), Lig. C- Tosc (Ravera & al. 2023), Marc (Ravera & al. 2023).

Description: Thallus crustose, episubstratic, rimose-areolate, 0.15-0.25 mm thick, usually delimited by a thin black prothallus, the areoles pale ochre-coloured to dark brown, dull to slightly shiny, 0.2-0.7 mm wide, polygonal, sometimes subdivided into smaller units, with wavy margins, separated by thin fissures. Cortex 10-25(-30) μm thick, rarely overlain by a very thin epinecral layer; algal layer 60-200 μm thick; medulla white to brownish at the base, without a black basal layer. Perithecia black, numerous, c. 120-180/cm², 1-2 per areole, completely or 2/3 immersed, the apical part flat to convex, c. 0.25 mm across. Involucrellum reaching down at least ⅔ of the perithecium, adpressed to exciple, 40-60 μm thick in upper part, 80-100 μm thick in lower part; exciple 0.25-0.30 mm across, the wall 15-20 μm thick, pale to dark brown, K+ olive-green; hamathecium of mostly simple periphyses and periphysoids measuring 20-30(-40) x c. 3 μm, interascal filaments absent; hymenial gel hemiamyloid, I+ red (I+ blue at very low concentrations of I), K/I+ blue. Asci 8-spored, clavate, I-, fissitunicate, the wall thickened above, with an ocular chamber, dehiscent by extrusion of an endotunica to form a delicate rostrum, Verrucaria-type; Ascospores 1-celled, hyaline, ellipsoid, (18-)20-26 x 8-11 μm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a poorly known, but apparently widespread taxon belonging to a group of species with a thick, brown, areolate thallus, which still needs revision. It has been reported from Italy, Austria, Slovakia and North America (see Breuss 2008).

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: extremely rare

Submediterranean belt: very rare

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

Source: Servít M. Nové a málo známé druhy z čeledí Verrucariaceae a Dermatocarpaceae. Preslia 24: 245-390, 1952, Tab. 2 – Public Domain