ITALIC 8.0

Rinodina griseosoralifera Coppins

Lichenologist, 21: 169, 1989.

Synonyms:

Distribution: N - Frl, Lig (TSB 33566). C - Sar (ASU-516331, det. J. Sheard).

Description: Thallus crustose, episubstratic, forming patches up to 10 cm or more in diam., areolate, sorediate, often delimited by a brown prothallus. Areoles dull greenish white, pale grey or greyish brown, up to 0.2 mm wide, rounded, flat to slightly convex, usually becoming entirely dissolved into soredia. Soralia numerous, blue-grey, erupting from the upper surface of the areoles, more or less convex, up to 0.2 mm in diam., discrete or a few confluent. Soredia farinose, 12-25(-30) μm in diam., the outer ones blue-grey, K+ brown Apothecia rare, lecanorine, 0.3-0.4 mm across, sessile, with a more or less poriform, brown disc, and a raised, white-grey thalline margin; proper margin brown, forming a narrow ring around the disc. Exciple (section) brownish in uppermost part, otherwise colourless; epithecium brown; hymenium colourless, up to 125 μm high, the hymenial gel K/1+ blue; paraphyses simple to sparingly branched in upper part, 1.5-2(-3) μm thick, widening to 3.5-4.5 μm at apex. 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, ellipsoid, 18-25(-34) x 10-12 μm, Pachysporaria-type. Photobiont chlorococcoid. Spot tests: thallus K+ more or less faintly yellow, C-, KC-, P-, UV-. Chemistry: atranorin, zeorin, traces of an unidentified terpenoid.

Note: a species found on trunks of broad-leaved trees, often near the base, sometimes invading epiphytic mosses; easy to overlook, being mostly sterile, it is probably more widespread throughout the country, mostly at relatively low elevations. It was included in the Italian red list of epiphytic lichens as “Data Deficient” (Nascimbene & al. 2013c).

Growth form: Crustose

Substrata: bark

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: extremely rare

Submediterranean belt: very rare

Padanian area: absent

Humid submediterranean belt: very 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 4.0

TSB 25377

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

Herbarium: TSB (25277)
2002/05/13

Pier Luigi Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (25277)