ITALIC 7.0

Micarea turfosa (A. Massal.) Du Rietz

Svensk Bot. Tidskr., 17: 94, 1923. Basionym: Biatora turfosa A. Massal. - Ric. Auton. Lich. Crost.: 128, 1852.

Synonyms: Lecidea turfosa (A. Massal.) Jatta; Lecidea verrucula (Norman) Th. Fr.; Lecidella verrucula (Norman) Stein; Micarea verrucula (Norman) Hedl.; Oedemocarpus turfosus (A. Massal.) Trevis.

Distribution: N - Ven, TAA. C - Tosc, Abr.

Description: Thallus crustose, episubstratic, continuous, blackish grey to brown-black, subgelatinous when wet, up to 70 μm thick, forming up to 3-5 cm wide patches, the outer hyphae with a dark green pigment reacting K-, N+ red. Apothecia micareoid, usually numerous and often confluent, 0.1-0.3(-0.4) mm across, red-brown to black in sun-forms, with a convex to subglobose disc, without a distinct proper margin. Proper exciple poorly developed but usually visible in very young apothecia, reddish brown, of radiating, branched and anastomosing hyphae; epithecium and upper part of hymenium blue-green, K-, N+ red; hymenium 35-50 mm high, greenish in upper part, sordid brown in lower part; paraphyses numerous, branched and sometimes anastomosing, 1-1.5 μm thick at mid-level, the upper cells 1.5-3 μm wide; hypothecium scarcely differentiated from the hymenium, mottled reddish brown, 70-140 μm high, K-, N- or N+ orange-brown. Asci 8-spored, clavate to cylindrical-clavate, with an unstained wall and a K/I+ blue outer layer and apical dome, the latter with a non-amyloid, cylindrical axial mass. Ascospores (0-)1-3-septate, oblong-ellipsoid to spindle-shaped, sometimes slightly curved, (10-)12-21(-25) x (3.5-)4-5 μm. Pycnidia immersed, inconspicuous, to 0.04 mm across, the wall sordid green, K-, N+ red. Conidia cylindrical, 3.5-5 μm long. Photobiont chlorococcoid, the cells 4-7 μm wide. Spot tests: thallus and apothecia K-, C-, KC-, P-, UV-. Chemistry. without lichen substances.

Note: a circumboreal-montane species found on acid peaty soil, terricolous bryophytes, more rarely on rotting wood in upland areas, reported from the Eastern Alps and the Northern-Central Apennines. Records from Central Italy, although not impossible (Nimis 1993: 437), require confirmation.

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: very rare

Subalpine belt: 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

Index Fungorum GBIF

P.L. Nimis CC BY-SA 4.0

GZU (Vezda Lich.Sel.Exs. 538)

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

Herbarium: GZU (Vezda Lich.Sel.Exs. 538)
2003/04/28