ITALIC 7.0

Rinodina cretica H. Mayrhofer

J. Hattori Bot. Lab., 55: 402, 1984.

Synonyms:

Distribution: C - Sar. S - Si (Nascimbene & al. 2021).

Description: Thallus crustose, endosubstratic, usually poorly evident. Apothecia cryptolecanorine to lecideine, immersed in pits in the rock, up to 0.5 mm across, with a flat, black but grey-pruinose disc, and a thin, black proper margin. Proper exciple dark brown in outer part, colourless within, containing some algal cells in lower part at least when young; epithecium brown; hymenium colourless, 70-80 µm high; paraphyses c. 1.5 µm thick at mid-level, the apical cells 3-5 µm wide, with a dark brown cap; hypothecium colourless, up to 100 µm high. Asci 8-spored, clavate, the K/I+ blue tholus penetrated by a faintly amyloid apical cushion with parallel or diverging flanks, the wall K/I-, surrounded by a K/I+ blue outer layer, Lecanora-type. Ascospores 1-septate, brown, broadly ellipsoid, 15-21 x 11-14 µm, Bicincta-type, the outer wall thickened at septum and apices when young, the lumina soon rounded, with a weakly pigmented band around each cell, the wall with a finely verrucose ornamentation, the ontogeny of type A (apical wall thickening after septum formation). Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a Mediterranean calcicolous species, probably somehow more widespread in Southern Italy.

Growth form: Crustose endolithic

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: very rare

Dry mediterranean belt: extremely 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

Index Fungorum GBIF