ITALIC 8.0

Scytinium massiliense (Nyl.) Otálora, P.M. Jørg. & Wedin

Fungal Divers., 64, 1: 291, 2013. Basionym: Leptogium massiliense Nyl. - Flora, 62: 354, 1879.

Synonyms:

Distribution: N - VG, Frl (Tretiach & Carvalho 1995), Ven (Nascimbene & al. 2021), Lig (Jørgensen 1994). C - Tosc (Jørgensen 1994, Benesperi 2007, 2007b), Marc (Nimis & Tretiach 1999), Laz (Nimis & Tretiach 2004), Abr (Jørgensen 1994, Brackel 2015), Mol (Nimis & Tretiach 1999, Caporale & al. 2008). S - Camp (Aprile & al. 2003b, Nimis & Tretiach 2004, Garofalo & al. 2010), Pugl (Jørgensen 1994, Nimis & Tretiach 1999), Bas (Nimis & Tretiach 1999, Potenza 2006), Cal (Puntillo 1996), Si (Ottonello & al. 2006b).

Description: Thallus subfruticose, subgelatinous when wet, forming up to 1(-2) cm wide patches. Lobes terete-filamentous, rather loosely attached, at first prostrate and irregularly spreading, then ascending, c. 3(-4) x 0.1-0.2 mm, dichotomously branched, brown to brown-black, somehow glossy, smooth or rarely longitudinally wrinkled, sometimes with nodular isidia-like outgrowths. Upper and lower cortex formed by regular layers of angular cells, the layer inbetween not paraplectenchymatous. Apothecia very rare, lecanorine, 0.4-0.8 mm across, with a concave to flat, brown disc. Epithecium brownish; hymenium and hypothecium colourless; paraphyses coherent, mostly simple, the apical cells slightly swollen. Asci 8-spored, narrowly clavate, the apex strongly thickened, the apical dome K/I+ pale blue, with a downwardly projecting K/I+ deep blue tubular structure. Ascospores submuriform, with 3-5 transverse septa and 1-2 longitudinal septa, hyaline, ellipsoid, 15-27 x 7-11 μm. Pycnidia immersed. Conidia bacilliform. Photobiont cyanobacterial (Nostoc, the cells in short chains). Spot test: all negative. Chemistry: without lichen substances.

Note: a mild-temperate to Mediterranean species found on steeply inclined surfaces of calcareous rocks with periodical seepage of water; certainly more widespread in Northern Italy.

Growth form: Fruticose filamentous

Substrata: rocks

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

Reproductive strategy: mainly sexual

On otherwise dry surfaces with short periods of water seepage after rain

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: rather rare

Submediterranean belt: rather common

Padanian area: absent

Humid submediterranean belt: rather common

Humid mediterranean belt: rather common

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 (17033)
2001/11/26

Domenico Puntillo; Owner: Department of Life Sciences, University of Trieste

Italy, Campania, Salerno, Valle Fiume Bussento (Salerno) .
Herbarium: CLU (17786)
06.04.2013

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

Herbarium: TSB (17033)
2001/11/26