ITALIC 7.0

Verrucaria mortarii (Arnold) Lamy

Bull. Soc. Bot. Fr., 25: 498, 1879, nom. illegit. non Leight. (1879). Basionym: Amphoridium leightonii f. mortarii Arnold - Flora, 49: 532, 1866.

Synonyms: Amphoridium mortarii (Arnold) Flagey

Distribution: N - Piem. C - Tosc.

Description: Thallus crustose, endosubstratic or very thinly episubstratic, grey-white, continuous to indistinctly rimose or pulverulent, poorly delimited and often inconspicuous, without a distinct prothallus. Perithecia black, 0.3-0.6 mm across, hardly projecting. Involucrellum absent; exciple globose, 0.3-0.45 µm wide, 0.4-0.6 mm high, the wall black throughout; 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, broadly ellipsoid to subglobose, 21-42 x 10-21 µm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a poorly known species growing on man-made calciferous substrata, including mortar, especially on walls below the montane belt, closely related to V. foveolata. The name is illegitimate and a new name would be required.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: rare

Padanian area: absent

Humid submediterranean belt: 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

S. Poumarat http://mycologie.catalogne.free.fr/lichens.htm

Zschacke, H. (1934) Epigloeaceae, Verrucariaceae und Dermatocarpaceae. In: Dr. L. Rabenhorst‘s Kryptogamen-Flora, Band 9, Abt. 1, Teil 1. Akademische Verlagsgesellschaft, Leipzig, 695 pp. - Public Domain

S. Poumarat - Source: http://mycologie.catalogne.free.fr/lichens.htm