ITALIC 8.0

Placynthiella hyporhoda (Th. Fr.) Coppins & P. James

Lichenologist, 16: 244, 1984. Basionym: Lecidea hyporhoda Th. Fr. - Lichenogr. Scand., 1, 2: 456 1874.

Synonyms: Saccomorpha hyporhoda (Th. Fr.) Clauzade & Cl. Roux

Distribution: N - TAA (Nascimbene & al. 2008, 2022, Nimis & al. 2015).

Description: Thallus crustose, episubstratic, dark olive brown to almost black, subgelatinous when wet, consisting of coalescing, c. 0.1 mm wide goniocysts forming a continuous to cracked-areolate crust. Apothecia biatorine, black, sessile and constricted at base, 0.2-0.5 mm across, with an epruinose, concave to weakly convex disc and a initially prominent and incurved, finally often excluded proper margin. Proper exciple 20-35 µm wide laterally, dark brown to brown-black, pseudoparenchymatous; epithecium brownish, K-; hymenium 50-75 µm high, pale brown in upper part, deep red-brown in lower part; paraphyses sparingly branched and anastomosing, 0.5-1 µm thick at base, the apical cells 1-4 µm wide; hypothecium dark brown, K+ purple-violet. Asci 8-spored, cylindrical-clavate, thin-walled, the apical dome mostly I-, Trapelia-type. Ascospores 1-celled, hyaline, 9-12 x 4-6 µm. Photobiont chlorococcoid. Spot tests: thallus K-, P-, C-, KC-, UV-. Chemistry: a terpenoid and an unidentified substance.

Note: on soil rich in heavy metals in upland areas; probably more widespread in the Alps, but overlooked.

Growth form: Crustose

Substrata: soil, terricolous mosses, and plant debris

Photobiont: green algae other than Trentepohlia

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

Pioneer species

Commonnes-rarity: (info)

Alpine belt: rare

Subalpine belt: rare

Oromediterranean belt: absent

Montane belt: very rare

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: absent

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 38548

Pier Luigi Nimis - CC BY-SA 4.0

TSB 38548

Pier Luigi Nimis - CC BY-SA 4.0

TSB 38548

Juri Nascimbene; Owner: Department of Life Sciences, University of Trieste

05.02.2015

Juri Nascimbene; Owner: Department of Life Sciences, University of Trieste

05.02.2015

Juri Nascimbene; Owner: Department of Life Sciences, University of Trieste

05.02.2015