Blastenia gennargentuae Vondrák

( in Vondrák & al.). Syst. Evol. 58, 3: , 318, 2020.
Synonyms:
Distribution: C - Sar (Vondrák & al. 2020). S - Cal (Nascimbene & al. 2021).
Description: Thallus crustose, episubstratic, grey, up to 150 μm thick when young, but old thalli with up to 800 μm thick, convex to bullate areoles, often with a black hypothallus visible among the areoles and forming a black layer in the medulla, delimited by a conspicuous, black prothalline line. Apothecia biatorine/zeorine, 0.7–1 mm across, with a red disc and an often blackened proper margin. Proper exciple prosoplectenchymatous, the outer part often blackened, C+ purple in section; epithecium orange-brown, K+ red, C-; hymenium colourless, not inspersed with oil droplets; paraphyses simple or sparingly branched and anastomosing, 1.5-3 μm thick in lower part, the apical cells usually wider; hypothecium colourless. Asci 8-spored, clavate, Teloschistes-type. Ascospores 1-septate, polarilocular, hyaline, ellipsoid, (10–)12-14(-15) x 6-7 µm, the septum c. 5 µm thick. Pycnidia dark grey. Conidia bacilliform, rarely narrowly ellipsoid, 3-5 x 1-1.5 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, N+ violet in section; apothecia K+ red, the exciple C+ purple. Chemistry: non-chlorinated anthraquinones in apothecial disc (C-), chlorinated anthraquinones in exciple (C+ purple); thallus without anthraquinones; Cinereorufa-green (K-, N+ violet in section) forms black patches in thallus, apothecia and pycnidia and often expands into medullar tissue, forming a black hypothallus. For further details see Vondrák & al. (2020).
Note: A recently-described species of siliceous rocks in the Mediterranean mountains (Gennargentu, Aspromonte). The records from Calabria (Aspromonte) were cited by Nimis (1993: 167) under B. festivella.
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: very rare
Montane belt: very rare
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent


pH of the substrata:

(info)

1

2

3

4

5

Solar irradiation:

(info)

1

2

3

4

5

Aridity:

(info)

1

2

3

4

5

Eutrophication:

(info)

1

2

3

4

5

Poleotolerance:

(info)

0

1

2

3

Altitudinal distribution:

(info)

1

2

3

4

5





Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus specantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.


Jan Vondrak - Source: https://botanika.prf.jcu.cz/lichenology/index.php?pg=8&cat=32&idx=9080
Italy
holotype



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (11883)
2001/11/13



Domenico Puntillo; Owner: Domenico Puntillo
Italy



Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus specantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus specantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus specantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.



Felix Schumm; Owner: Felix Schumm - CC BY-SA 4.0
[19578], Italia, Calabria, Aspromonte, (FS). Pietra Impliccata, alt. 1700 m, in rupibus siliceis duris ad latera septentriones versus spectantia. Leg. P.L. Nimis & M. Tretiach, det. J. Poelt. VEZDA: LICHENES SELECTI EXSICCATI NR. 2320.