ITALIC 8.0

Trapelia corticola Coppins & P. James

Lichenologist, 16: 254, 1984.

Synonyms: Lecidea elegantula Riehm. nom. illegit.; Trapejamesia corticola (Coppins & P. James) S.Y. Kondr.

Distribution: N - Lomb (Stofer 2006), Lig (Ravera & al. 2022). C - Tosc. S - Si (Nimis & al. 1994).

Description: Thallus crustose, endosubstratic or thinly episubstratic, sorediate, poorly delimited, pale brown in exposed sites, brownish green in shade, the young areoles arising on the hypothallus, with thin margins, early becoming uneven and coalescing into a thin, verrucose-uneven crust with 30-80 µm wide, very poorly delimited subunits, sometimes delimited by a very thin, pale prothallus. Soralia punctiform, 0.1-0.3(-0.5) mm across, usually discrete but sometimes confluent, strongly convex, pale brown to pale greenish brown, with farinose, c. 20 µm wide soredia. Apothecia very rare, lecideine, sessile, 0.2-0.35(-0.4) mm across, with a concave to flat, pale pinkish brown to medium brown disc and a very thin, paler proper margin, without a pseudothalline rim. Proper exciple 20-30 μm thick, of colourless hyphae embedded in a colourless to weakly pigmented gel; epithecium almost colourless to pale yellowish brown; hymenium colourless, 80-110 μm high; paraphyses coherent, thin, densely branched and anastomosing, the apical cells,brown, swollen, to 3.5 μm wide; hypothecium colourless. Asci 8-spored, cylindrical-clavate, unitunicate, thin-walled, the apical dome K/I-, or weakly K/I+ blue, Trapelia-type. Ascospores 1-celled, hyaline, ellipsoid, 9-15.5 x 5-9 μm. Photobiont chlorococcoid. Spot tests: soralia K-, C+ red, KC+ red, P-, UV+ white. Chemistry: gyrophoric acid (major), perhaps traces of 5-O-methylhiascic acid.

Note: on the spongy, loose bark of deciduous trees, sometimes on moribund epiphytic bryophytes in sheltered, humid woodlands at low elevations. It is included in the Italian red list of epiphytic lichens as “Endangered” (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: absent

Submediterranean belt: extremely rare

Padanian area: absent

Humid submediterranean belt: very rare

Humid mediterranean belt: very 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

P.L. Nimis CC BY-SA 4.0

TSB 302892

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

Herbarium: TSB (30292)
2001/12/01

Pier Luigi Nimis - CC BY-SA 4.0

TSB 30292

P.L. Nimis CC BY-SA 04

TSB 30292

P.L. Nimis CC BY-SA 04

TSB 30292

P.L. Nimis CC BY-SA 04

TSB 30292

Felix Schumm - CC BY-SA 4.0

[VZR362], Bohemia, austr. occidentalis, Montes Šumava (Gabreta), distr. Železná Ruda, in valle conflvii dextri vallis rivi Debrenik, 750 m. Ad corticem Tiliae secus viam. Leg. Z. Palice & C. Printzen. EX A. VEZDA: LICHENES RARIORES EXSICCATI NR. 362.

Felix Schumm - CC BY-SA 4.0

[VZR362], Bohemia, austr. occidentalis, Montes Šumava (Gabreta), distr. Železná Ruda, in valle conflvii dextri vallis rivi Debrenik, 750 m. Ad corticem Tiliae secus viam. Leg. Z. Palice & C. Printzen. EX A. VEZDA: LICHENES RARIORES EXSICCATI NR. 362.