ITALIC 7.0

Verruculopsis beltraminiana (A. Massal.) Cl. Roux

in Roux & al., Catalogue des Lichens et Champignons lichénicoles de France Métropolitaine, 3e éd.: 1290, 2020. Basionym: Lithocia beltraminiana A. Massal. - Symmicta Lich.: 93, 1855.

Synonyms: Verrucaria beltraminiana (A. Massal.) Trevis.

Distribution: N - VG (TSB 11675), Ven (Caniglia & al. 1999, Lazzarin 2000b), Piem. C - Mol (Nimis & Tretiach 1999, Caporale & al. 2008), Sar. S - Camp (Aprile & al. 2003b), Pugl, Bas.

Description: Thallus crustose, episubstratic, areolate, up to 0.3 mm thick, the areoles sharply angular with brown to black side-walls but usually without a black rim, contiguous, flat, 0.2-0.8 mm wide, whitish to bluish grey, dull. Cortex paraplectenchymatous, overlain by an amorphous epinecral layer; algal layer filling most of thallus; medulla white, with a very thin, brownish basal layer. Perithecia black, numerous, marginal or located between the areoles, deeply immersed, with slightly projecting, convex apices. Involucrellum adpressed to exciple, extending to base-level and more or less incurved beneath; exciple subglobose, 0.2-0.3 mm wide, the wall darker in upper part; hamathecium of 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, rather broadly ellipsoid, 17-22 x 7-9(-10) µm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: on horizontal to weakly inclined surfaces of calcareous rocks, including walls in small settlements. A critical species, closely related to (but perhaps distinct from) V. lecideoides.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: extremely rare

Oromediterranean belt: absent

Montane belt: extremely rare

Submediterranean belt: rather rare

Padanian area: extremely rare

Humid submediterranean belt: rare

Humid mediterranean belt: very 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

Herbarium samples

P.L. Nimis CC BY-SA 4.0

TSB 13308

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (13308)
2003/03/17

Source: Servít M. Nové a málo známé druhy z čeledí Verrucariaceae a Dermatocarpaceae. Preslia 24: 245-390, 1952, Tab. 3 – Public Domain