ITALIC 8.0

Parabagliettoa pinguicula (A. Massal.) Orange

Revisions of British and Irish Lichens, 31: 97, 2023. Basionym: Verrucaria pinguicula A. Massal. - Lotos, 6: 80, 1856

Synonyms: Amphoridium integrum (Nyl.) B. de Lesd.; Involucrothele pinguicula (A. Massal.) Servít; Thelidium persicinum (Hepp) Servít; Verrucaria caecula Servít; Verrucaria integra (Nyl.) Nyl. non auct.; Verrucaria lilacina A. Massal.?; Verrucaria peloclita Nyl.; Verrucaria persicina Hepp

Distribution: N - Frl (Breuss 2008), Ven (Lazzarin 2000b, Watson 2014), TAA, VA (Piervittori & Isocrono 1999), Emil (Fariselli & al. 2020), Lig (Giordani & al. 2016). C - Marc (Nimis & Tretiach, 1999), Umb (Genovesi & Ravera 2001, Ravera & al. 2006, Panfili 2007), Laz. S - Camp (Aprile & al. 2003, 2003b), Pugl (Nimis & Tretiach 1999).

Description: Thallus crustose, hemiendosubstratic or thinly episubstratic, 0.1-0.3 mm thick, grey-brown, olive-brown, ochre-coloured to medium brown, more or less smooth, shiny, with a oily appearance, continuous, finely rimose (especially around the perithecia), or areolate, often delimited by a dark prothallus, especially from conspecific thalli, the areoles 0.2-0.3 mm wide. Cortex up to 30 μm thick; algal layer clearly delimited, up to 80 μm thick; medulla thin, white to brownish, with numerous crystals, without a black basal layer. Perithecia black, small and dense (260-400/cm²), 1-2 per areole, totally to ⅔ immersed in thallus, leaving no pits when they fall off, the apical part often flattened. Involucrellum adpressed to exciple, reaching down at least ⅓–⅔ of the perithecium (most often to base-level), unequally thick, laterally 30-60 μm thick, becoming progressively thinner or thicker (-80 μm) downwards; exciple 0.15-0.3 mm across, the wall brown to colourless, often paler in basal parts; hamathecium of mostly simple, (15-)20-30 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, narrowly ellipsoid, (12-)13-18(-21) x 5-7(-8) μm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: on hard, compact limestone in rather shaded, sheltered situations; much overlooked, probably more frequent in Italy. For a good description and further details see Breuss (2008b).

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: very rare

Oromediterranean belt: absent

Montane belt: rare

Submediterranean belt: rather common

Padanian area: absent

Humid submediterranean belt: rather common

Humid mediterranean belt: very rare

Dry mediterranean belt: very rare

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

Index Fungorum GBIF

P.L. Nimis CC BY-SA 04

TSB 31153

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

P.L. Nimis CC BY-SA 4.0

TSB 31153

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_pinguicula.htm

France, 25/8/2016 - Crête du Mont d'Or, alt. 1450 m - Doubs

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_pinguicula.htm

France, 25/8/2016 - Crête du Mont d'Or, alt. 1450 m - Doubs

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_pinguicula.htm

France, 25/8/2016 - Crête du Mont d'Or, alt. 1450 m - Doubs

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_pinguicula.htm

France, 25/8/2016 - Crête du Mont d'Or, alt. 1450 m - Doubs

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_V/Texte_V/Verrucaria_pinguicula.htm

France, 25/8/2016 - Crête du Mont d'Or, alt. 1450 m - Doubs

Source: Breuss O. 2008b. Bemerkungen zu einiger Arten der Flechtengattung Verrucaria. Sauteria, 15: 121-138. Author: Othmar Breuss