ITALIC 7.0

Rinodina interpolata (Stirt.) Sheard

Lichenologist, 5: 461, 1973. Basionym: Lecidea interpolata Stirt. - Scott. Natural., 4: 165, 1878

Synonyms:

Distribution: S - Cal (Nascimbene & al. 2021).

Description: Thallus crustose, episubstratic, 0.1-0.5 mm thick, rimose or rimose-areolate, rarely verrucose-subsquamulose, the areoles 0.25-0.8 mm wide, pale grey to brown, sometimes with a mauve tinge, often delimited by a black prothallus. Apothecia lecanorine, 0.3-0.5 mm across, broadly attached to sessile, scattered and discrete, with a flat to slightly convex, brown-black to black disc and a persistent, sometimes crenulate thalline margin. Epithecium dark reddish brown, 10-20 µm high; hymenium colourless, 60-80 µm high; hypothecium colourless, 50-80(-150) 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, narrowly ellipsoid, (13-)15-17(-20) x (6-)7-8(-9) µm, strongly thickened near septum but also slightly thickened apically, the outer wall roughened, Physcia-type grading into the Physconia-type, with ontogeny of type A (apical wall thickening after septum formation). Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances or with variable amounts of zeorin.

Note: on hard siliceous rocks, usually on sheltered and shaded, vertical or overhanging cliffs and boulders. Described from Scotland where it is uncommon (Mayrhofer & Poelt 1979, Giavarini & al. 2009) and also known from scattered localities in middle and southern Scandinavia and Iceland (Mayrhofer & Moberg 2002): very rare in Western and Central Europe (Giralt & al. 1997, Wirth & al. 2013), being known from mid- to rather high altitudes in Portugal (Giralt 2001).

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

In underhangs rarely wetted by rain

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: extremely rare

Oromediterranean belt: extremely rare

Montane belt: extremely rare

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: absent

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

Index Fungorum GBIF

Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php

Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php