ITALIC 8.0

Heppia solorinoides (Nyl.) Nyl.

Syn. Meth. Lich., 2: 46, 1863. Basionym: Lecanora solorinoides Nyl. - Mém. Soc. Sc. Nat. Cherbourg, 2: 323, 1854.

Synonyms: Endocarpon reticulatum Dufour nom. illegit.; Heppia reticulata (Nyl.) Nyl.

Distribution: C - Tosc (TSB 35171). S - Pugl (Nimis & Tretiach 1999), Cal (Puntillo 1996), Si (Caniglia & Grillo 2001, 2005, 2006, Grillo & Caniglia 2004, 2005, Cataldo & Minissale 2013, 2015).

Description: Thallus squamulose, brownish under a thick white layer of clustered crystals (pruina) which tends to accumulate in areolate patches, giving the surface a reticulate appearance. Squamules (2-)3-7 mm broad, 300-400 µm thick, elongate, at first flat, then concave, contiguous, with rounded ends and up-turned, undulate edges, attached by a mat of rhizohyphae. Upper cortex paraplectenchymatous, 35-75 µm thick, overlain by a 15-25 µm thick epinecral layer; medulla 60-100 µm thick, paraplectenchymatous; lower cortex 25-30 µm thick, paraplectenchymatous, hardly differentiated from the medulla. Apothecia frequent, without a thalline margin, semi-immersed in the squamules, 0.5-1.5(-2.5) mm across, with a reddish brown, at first concave, then flat disc. Proper exciple poorly developed: epithecium orange-brown, K-; hymenium colourless, 150-200 µm high; paraphyses mostly simple, lax, distinctly thickened above; hypothecium colourless. Asci 8-spored, cylindrical to obovoid, prototunicate, thin-walled, the wall I+ blue. Ascospores 1-celled, hyaline, ellipsoid, thin-walled, 16-26(-29) x (6-)8-12(-13) µm. Pycnidia dark, immersed. Conidia bacilliform. Photobiont cyanobacterial, Scytonema-like. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: on clay or sandy-clay soil, restricted to very dry grasslands in Mediterranean Italy.

Growth form: Squamulose

Substrata: soil, terricolous mosses, and plant debris

Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)

Reproductive strategy: mainly sexual

Subcontinental: restricted to areas with a dry-subcontinental climate (e.g. dry Alpine valleys, parts of Mediterranean Italy)

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: extremely rare

Dry mediterranean belt: 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

Herbarium samples

Index Fungorum GBIF

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

Herbarium: TSB (9454)
2001/11/24

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

Herbarium: TSB (38434)
2008.02.25

P. L. Nimis - CC BY-SA 4.0

Herbarium: Herbarium: TSB 35297

Manuel Gil

Spain, Canary Islands, Lanzarote

Manuel Gil

Spain, Canary Islands, Lanzarote

Manuel Gil

Spain, Canary Islands, Lanzarote