ITALIC 7.0

Blastenia subathallina (H. Magn.) Arup & Vondrák

( in Vondrák & al.) J. Syst. Evol. 58, 3: 322, 2020.. Basionym: Caloplaca subathallina H. Magn. - Bot. Not.: 82, 1951.

Synonyms:

Distribution: C - Abr (Di Nuzzo & al. 2021, Gheza & al. 2021, Vallese & al. 2022), Sar (Vondrák & al. 2020). S - Si (Vondrák & al. 2020).

Description: Thallus crustose, thinly episubstratic, white to grey-white. Apothecia biatorine, sessile, 0.2-0.4 mm across, with a black, epruinose disc and a thin proper margin. Proper exciple prosoplectenchymatous, brown to grey brown in outer part, colourless within, the pigmented parts K+ violet, N+ orange-red; epithecium grey-brown, K+ strongly violet, N+ orange-red; hymenium colourless, 45-75 µm high, K/I+ blue; paraphyses simple or sparingly branched in upper part, 1-1.5 µm thick at base, the apical cells up to 3 µm wide; hypothecium colourless. Asci 8-spored, clavate, Teloschistes-type. Ascospores 2-celled, polarilocular, hyaline, ellipsoid, 11-15 x 6-8 µm, the equatorial thickening (“septum”) 4-7 µm; lumina of immature spores sometimes sandglass-shaped. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC- P-. Chemistry: exciple and epithecium with unidentified anthraquinones.

Note: According to Vondrák & al. (2020), this species differs from all other species of the hungarica-group by its chemistry (chlorinated chemosyndrome only). It is known from many stations, mainly in the Mediterranean Region, and is most frequent on twigs of deciduous and coniferous trees and shrubs, with a wide altitudinal range. The only Italian stations are from Abruzzo, Sardinia and the Aeolian Islands, but the species may be more widespread in Mediterranean Italy.

Growth form: Crustose

Substrata: bark

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: very rare

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: rare

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

Herbarium samples

Jan Vondrak https://botanika.prf.jcu.cz/lichenology/index.php?pg=8&cat=32&idx=11454 holotype

Jan Vondrak - Source: https://botanika.prf.jcu.cz/lichenology/index.php?pg=8&cat=32&idx=7640

Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_B/Textes_B3/Blastenia_subathallina.htm

France, Aéroport Campo dell' Oro, alt. 5 m - Corse - (20) - sur écorce de ganivelles (clôture de lattes verticales) de Castanea
9/10/2016

Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_B/Textes_B3/Blastenia_subathallina.htm

France, Aéroport Campo dell' Oro, alt. 5 m - Corse - (20) - sur écorce de ganivelles (clôture de lattes verticales) de Castanea
9/10/2016

Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_B/Textes_B3/Blastenia_subathallina.htm

France, Aéroport Campo dell' Oro, alt. 5 m - Corse - (20) - sur écorce de ganivelles (clôture de lattes verticales) de Castanea
9/10/2016

Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_B/Textes_B3/Blastenia_subathallina.htm

France, Aéroport Campo dell' Oro, alt. 5 m - Corse - (20) - sur écorce de ganivelles (clôture de lattes verticales) de Castanea
9/10/2016

Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_B/Textes_B3/Blastenia_subathallina.htm

France, Aéroport Campo dell' Oro, alt. 5 m - Corse - (20) - sur écorce de ganivelles (clôture de lattes verticales) de Castanea
9/10/2016

Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_B/Textes_B3/Blastenia_subathallina.htm

France, Aéroport Campo dell' Oro, alt. 5 m - Corse - (20) - sur écorce de ganivelles (clôture de lattes verticales) de Castanea
9/10/2016

Courtesy: Olivier et Danièle Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_B/Textes_B3/Blastenia_subathallina.htm

France, Aéroport Campo dell' Oro, alt. 5 m - Corse - (20) - sur écorce de ganivelles (clôture de lattes verticales) de Castanea
9/10/2016