ITALIC 8.0

Verrucaria nidulifera Servít

Vestn. Král. Ceské Spol. Nauk, Trída Matem.-Prírod., Rocník 1947, nr. X: 15, 1948.

Synonyms:

Distribution: N - TAA.

Description: Thallus crustose, endosubstratic, of the same colour of the rock, or appearing as sparse, very small dark dots. Upper cortex not developed; hyphae under the algal layer with oil cells. Perithecia black, immersed in the rock for 1/2-2/3, leaving deep pits in the rock. Involucrellum carbonized, covering 1/3-1/2 of the perithecium, 100-120 µm thick, not thickening in lower part; exciple subglobose, 250-350 µm across, at first brown in upper part and colourless in lower part, finally dark brown throughout; hamathecium of periphyses and periphysoids, interascal filaments absent, the periphysoids c. 25 µm long; 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, 17-20 x 7.5-9.5 µm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: according to Breuss (2016) the species resembles Parabagliettoa dufourii (which was growing together with the type material), differing in the less developed involucrellum, the more immersed perithecia and the presence of oil hyphae. The species was described on the basis of a sample collected by F. Arnold on dolomite (see Nimis 1993: 755).

Growth form: Crustose endolithic

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: very 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

Index Fungorum GBIF

Source: • • Breuss O. 2016. Über einige von Miroslav Servít beschriebene Verrucaria-Arten (lichenisierte Ascomycota, Verrucariaceae). Herzogia, 29