ITALIC 8.0

Polyblastia plicata (A. Massal.) Lönnr.

Flora, 41: 631, 1858. Basionym: Verrucaria plicata A. Massal. - Lotos, 6: 80, 1856.

Synonyms:

Distribution: N - Ven, TAA, Piem (Isocrono & al. 2004).

Description: Thallus crustose, episubstratic, rather thick, usually rimose-areolate, whitish, grey-brown or ochraceous, sometimes delimited by a black prothallus. Hyphae of the algal layer oriented vertically. Perithecia black, numerous, largely immersed in the thallus, 0.18-0.25 mm across. Involucrellum well-developed around the ostiole to dimidiate, 19-28 μm thick, clearly distinct from exciple except in the ostiolar region, shield-like, spreading almost horizontally; exciple pale brown throughout, merged with the involucrellum in the uppermost part, pseudoparenchymatous; hamathecium of periphyses and periphysoids, interascal filaments absent; periphysoids 16-23 μm long and 1.5-2 μm thick, sparingly branched in the uppermost part; hymenial gel I+ red, K/I+ blue. Asci 8-spored, clavate, K/I-, fissitunicate, the wall thickened above, with a broad ocular chamber, dehiscent by extrusion of an endotunica to form a delicate rostrum. Ascospores submuriform, partly crosswise septate with 1-3 transverse septa and 1 longitudinal septum, with 4-8 cells in optical view, hyaline, ellipsoid, but thickened towards one end, 11-15(-17) x 7-9(-10) μm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: on compact limestone and dolomite in shaded and humid situations, mostly in upland areas.

Growth form: Crustose endolithic

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: rare

Subalpine belt: very rare

Oromediterranean belt: absent

Montane belt: extremely rare

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: Sanja Savic & Leif Tibell. 2012. Polyblastia in Northern Europe and the adjacent Arctic. Symb. Bot. Upsal. 36,1.

Source: 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