ITALIC 7.0

Lecidella flavosorediata (Vězda) Hertel & Leuckert

Willdenowia, 5: 374, 1969. Basionym: Lecidea flavosorediata Vězda - Preslia, 33: 366, 1961.

Synonyms: Lecidella elaeochroma var. flavosorediata (Vězda) Clauzade & Cl. Roux

Distribution: N - Ven (Nascimbene & al. 2015), TAA (Nascimbene 2014), Lig (TSB 33039). C - Tosc (Loppi & al. 1994), Sar (Zedda 2002). S - Pugl (Nimis & Tretiach 1999), Cal (Ravera & al. 2022).

Description: Thallus crustose, endo- to episubstratic, greyish white to yellowish white in non-sorediate parts, continuous to areolate, forming up to a few cm wide, regular or irregular patches or mosaics with other lichens, without an evident prothallus. Areoles, when present, mostly marginal, up to 0.1 mm in diam.; soralia conspicuous, yellowish to ochre-coloured, irregular, flat, at first more or less discrete, later becoming confluent and forming a thick, subleprose crust; soredia farinose, 20-30 μm in diam., sometimes gathered into larger consoredia. Apothecia rather rare, lecideine, black, up to 0.8 mm across, with a convex disc and a thin, finally often excluded proper margin. Epithecium blue-violet; hymenium colourless; paraphyses easily made free in K, simple, rarely anastomosing or branched in upper part, not capitate; hypothecium brown. Asci 8-spored, clavate, with an intensely K/I+ blue tholus penetrated by a faintly amyloid, broadly cylindrical axial mass, and a poorly developed ocular chamber, the wall K/I-, surrounded by a K/I+ blue outer layer, approaching the Lecanora-type. Ascospores 1-celled, hyaline, ellipsoid, 10-14 x 6-8 μm. Pycnidia rare, black in upper part. Conidia thread-like, strongly curved, often U-shaped, c. 25 μm long. Photobiont chlorococcoid. Spot tests: thallus K-, C+ orange, KC+ orange, P-, UV-; soralia K-. Chemistry: arthothelin, variable amounts of granulosin.

Note: this epiphytic species seems to be most frequent on deciduous trees and Abies in the mountains of Southern Italy. For its chemistry see Knoph & Leuckert (1997).

Growth form: Crustose

Substrata: bark

Photobiont: green algae other than Trentepohlia

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

Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: very 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

Harrie Sipman – Source http://www.bgbm.fu-berlin.de/sipman/Zschackia/AegeanLichens/CaloplacaAC.htm - As Caloplaca oasis

E. Pittao; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (TSB 13279)
20.10.2009

E. Pittao; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (TSB 13279)
20.10.2009

E. Pittao; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (TSB 13279)
20.10.2009