ITALIC 8.0

Thelenella muscorum var. octospora (Nyl.) Coppins & Fryday

in Fryday & Coppins, Lichenologist, 36: 91, 2004. Basionym: Verrucaria muscicola var. octospora Nyl. in Ohlert - Lich. Prov. Preussen: 43, 1870.

Synonyms: Chromatochlamys muscorum var. octospora (Nyl.) H. Mayrhofer & Poelt

Distribution: N - Piem (TSB 34009).

Description: Thallus crustose, whitish to pale brown, thin, more or less continuous and membrane-like. Perithecia black, half immersed, covered by the pale thallus in lower part, globose to broadly pyriform, not flattened, 0.3-0.6 mm across. Exciple 50-70 µm thick, dark brown in upper part, paler on lower part; periphysoids present near the ostiole, conglutinated; paraphysoids persistent, thin, branched and anastomosing, not apically thickened, free. Asci 6-8-spored, cylindrical, fissitunicate, thick-walled, the inner wall thinner than the outer one, the apex with an internal beak, K/I-. Ascospores muriform, with 11-14 transverse septa and 1-3 longitudinal septa, hyaline, becoming straw-coloured when old, elongate-ellipsoid to subcylindrical, 40-60 x 15-20 µm, the outer wall scarcely thicker than the septa. Photobiont chlorococcoid, the algal cells without a gelatinous sheath. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a mainly western lichen in Europe found on moribund mosses on rocks and soil, mostly in upland areas. The record from the Italian Alps is somehow surprising.

Growth form: Crustose

Substrata: bark, soil, terricolous mosses, and plant debris

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: extremely rare

Oromediterranean belt: absent

Montane belt: extremely 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; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (34009)
2003/03/06