ITALIC 8.0

Polyblastia evanescens Arnold

Verh. zool.-bot. Ges. Wien, 21: 1123, tab. 14, fig. 11, 1871.

Synonyms:

Distribution: N - TAA.

Description: Thallus crustose, grey, very thin and film-like, continuous, often poorly evident. Perithecia black, globose, projecting, up to 0.2 mm across. Exciple dark throughout; hamathecium of periphyses and periphysoids, interascal filaments absent; hymenial gel hemiamyloid, I+ red (I+ blue at very low concentrations of I), K/I+ blue. Asci 8-spored, clavate, K/I-, fissitunicate, the wall thickened above, with a broad ocular chamber, dehiscent by extrusion of an endotunica to form a delicate rostrum. Ascospores strongly muriform, with 10-12 transverse septa and 3-4 longitudinal septa, hyaline, sometimes very pale brown when old, ellipsoid-cylindrical, 45-60 x 18-25 μm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: on bryophytes (Rhacomitrium, Distichum, Encalypta), with optimum above treeline; very rarely collected, but perhaps more widespread in the Alps.

Growth form: Crustose

Substrata: soil, terricolous mosses, and plant debris

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: rare

Subalpine belt: very rare

Oromediterranean belt: absent

Montane belt: absent

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

Index Fungorum GBIF

P.L. Nimis CC BY-SA 04

GZU 119-85 Mayrh. (5640)

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

Herbarium: GZU 119-85 Mayrh. (5640)
2003/04/28