ITALIC 7.0

Verrucaria praerupta Anzi

Atti Soc. Ital. Sci. Nat., 11: 173, 1868.

Synonyms:

Distribution: N - Lomb (Breuss & Berger 2010).

Description: Thallus crustose, episubstratic, areolate, 0.15-0.3 mm thick, medium to dark brown, brown-black in exposed sites, dull, often delimited by a thin, black prothallus, the areoles polygonal, 0.2-0.7 mm wide, flat, contiguous. Cortex thin; algal layer continuous, concentrated in the upper half of thallus; medulla colourless to brown, sometimes black in the lowermost part. Perithecia black, immersed to slightly projecting. Involucrellum reaching to base-level, adpressed to exciple, c. 50 μm thick; exciple subglobose, 0.15-0.3 mm across, the wall black throughout; hamathecium of short (c. 50 μm), simple periphyses and periphysoids, 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, broadly ellipsoid, 13-18 x 8-10(-11) μm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: closely related to V. nigrescens, but differing in several important morphological characters, this poorly known species occurs on calcareous rocks in upland areas; it is also known from the Austrian Alps (see Breuss & Berger, 2010) and from the Haute Savoye in France (Roux & coll., 2014).

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Pioneer species

Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: very rare

Subalpine belt: very rare

Oromediterranean belt: absent

Montane belt: absent

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

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4

5

6

(info)

Predictive model

Index Fungorum GBIF

© The Trustees of the Natural History Museum, London – CC BY-SA NC 4.0

BM001107139_a

Source: Servit, M 1949: Nove nebo mene zname druhy lisejnikove celedi Verrucariaceae. Species Verrucariacearum (Lichenes) novae vel minus cognitae. - Sbornik Narodniho Musea v Praze 5(9): 1-51. Tab.3 - Public Domain