ITALIC 7.0

Protoblastenia cyclospora (Körb.) Poelt

Mitt. bot. Staatss. München, 12: 5, 1975. Basionym: Biatora cyclospora Hepp ex Körb. - Parerga Lichenol.: 152, 1860.

Synonyms: Biatora rubidula (Nyl.) Walt. Watson; Lecidea cyclospora (Körb.) Müll. Arg.; Lecidea rubidula Nyl.; Protoblastenia globulificans (Nyl.) Zahlbr.

Distribution: N - Frl (Henssen & Tretiach 1995, Vezda Lich. Rar. Exs. 326, Kainz & Rambold 2004, Peršoh & al. 2004), TAA (TSB 20345). C - Tosc (Benesperi 2006, 2007, 2007b), Abr (Nimis & Tretiach 1999, Gheza & al. 2021), Mol (Nimis & Tretiach 1999, Caporale & al. 2008), Sar (Tretiach 2015q). S - Camp (Aprile & al. 2003b).

Description: Thallus crustose, endosubstratic or more rarely thinly episubstratic, continuous or rarely finely cracked, pale grey to grey-white, often inconspicuous. Apothecia (0.35-)0.45-0.7 mm across, sessile, slightly to strongly constricted at base, not immersed in pits, with a strongly convex, dark orange-red disc and an indistinct proper margin. Proper exciple poorly developed, of colourless, branched hyphae; epithecium orange-red, 15-25 µm high, with granular crystals reacting K+ red; hymenium colourless or more often with reddish stripes in upper part, 80-100 µm high, hemiamyloid; paraphyses coherent, sparingly branched and anastomosing, 2-3.5 µm thick, the apical cells slightly swollen, 3-4 µm wide; hypothecium yellow-orange to pale orange-red, patchily pigmented. Asci 8-spored, elongate-clavate, with a thin, outer amyloid layer and a thickened tholus penetrated by a tube, the sides of which stain I/KI+ deep blue, Porpidia-type. Ascospores 1-celled, hyaline, globose or subglobose, (5-)7-9 x 5-7.5 µm, without a distinct perispore. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-; apothecia K+ red. Chemistry: apothecia with anthraquinones, mainly parietin.

Note: on steeply inclined surfaces of calcareous rocks in humid-rainy areas below the Alpine belt; to be looked for in other parts of Italy with very high precipitation and calcareous-dolomitic substrata (e.g. the Apuan Alps).

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: extremely rare

Oromediterranean belt: absent

Montane belt: rare

Submediterranean belt: very rare

Padanian area: absent

Humid submediterranean belt: extremely rare

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

Herbarium samples

Index Fungorum GBIF

P.L. Nimis CC BY-SA 04

TSB 29271

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (29271)
2001/11/29

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Protoblastenia_cyclospora.htm

France, 3/8/2013 - Lanslebourg, Mont-Cenis - alt. 2000 m - Savoie

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Protoblastenia_cyclospora.htm

France, 3/8/2013 - Lanslebourg, Mont-Cenis - alt. 2000 m - Savoie

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Protoblastenia_cyclospora.htm

France, 3/8/2013 - Lanslebourg, Mont-Cenis - alt. 2000 m - Savoie

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_P/Text_P_3/Protoblastenia_cyclospora.htm

France, 3/8/2013 - Lanslebourg, Mont-Cenis - alt. 2000 m - Savoie