ITALIC 8.0

Verrucaria porphyricola Servít

Stud. Bot. Cech., 7: 74-75, 1946.

Synonyms:

Distribution: N - TAA.

Description: Thallus crustose, episubstratic, areolate, brown, delimited by a dark prothallus, the areoles 0.15-0.25 mm wide, flat to slightly convex. Perithecia black, mostly arising at the margins of the areoles, c. half immersed in the thallus, the upper part hemispherically projecting. Involucrellum reaching to base-level but not completely surrounding the exciple, closely adpressed to exciple, 20-30 µm thick; exciple globose, 0.1-0.15 mm across, the wall pale brown; hamathecium of 15-20 µm long 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, ellipsoid, 8-12 x 5-7 µm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a rarely-collected species of basic siliceous rocks (see Nimis 1993: 747-748). According to Breuss (2016) the species is related to Verruculopsis minuta.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: very rare

Subalpine belt: absent

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

2

3

4

5

6

(info)

Predictive model

Index Fungorum GBIF

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.2 - Public Domain