ITALIC 8.0

Pyrenula relicta Etayo & Puntillo

Flora Mediterranea, 21: 243, 2011.

Synonyms:

Distribution: S - Camp (Etayo & Puntillo 2009, 2011, Ravera & al. 2015c).

Description: Thallus crustose, thin, immersed, continuous, olive-green (in shade) to olive-orange, without pseudocyphellae, delimited by a black prothallus. Perithecia black, flattened to (rarely) subglobose, 0.3-0.45 mm across, with a black involucrellum spreading laterally up to 0.7 mm, K-, the ostiole central, sometimes in a small papilla or hole. Exciple black throughout, entire, without crystals amongst the carbonaceous hyphae, c. 30 μm thick laterally; hymenial gel I+ orange (dextrinoid reaction), K/I+ yellow, without oil droplets or crystals; hamathecium of branched and anastomosed periphysoids, later substituted by more or less unbranched paraphyses; ostiole with periphyses. Asci 8-spored, narrowly cylindrical, long-stalked, bitunicate, with tholus, thickened at apex with an internal apical beak, non-amyloid. Ascospores 3-septate, brown, ellipsoid with rounded apices, 14-18 x 6.5-8.5 μm, thick-walled, distoseptate, with angular central cells, the end-cells with lumina directly against the exospore. Photobiont trentepohlioid. Spot tests: thallus K-, C-, KC-, P-, UV+ orange. Chemistry: unknown.

Note: on twigs and leaves of Buxus in humid sites with a warm-oceanic climate; hitherto known from France (Kakouetta) and Italy (Gole del Bussento).

Growth form: Crustose

Substrata: leaves

Photobiont: Trentepohlia

Reproductive strategy: mainly sexual

Restricted to humid-warm, oceanic areas

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: extremely rare

Humid mediterranean belt: extremely 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

Index Fungorum GBIF

D. Puntillo CC BY-SA 04

Domenico Puntillo; Owner: Domenico Puntillo

Italy

Domenico Puntillo CC BY-SA 4.0

Italy