Fuscidea mollis (Wahlenb.) V. Wirth & Vězda

in Wirth, Beitr. naturk. Forsch. Südwestdeutschl., 31: 92, 1972. Basionym: Lecidea rivulosa var. mollis Wahlenb. - Fl. Lappon.: 472, 1812.
Synonyms: Biatora mollis (Wahlenb.) Arnold; Lecidea mollis (Wahlenb.) Nyl.; Lecidea mollis var. albescens (Körb.) H. Magn.
Distribution: N - TAA, Piem, VA (Piervittori & Isocrono 1999).
Description: Thallus crustose, episubstratic, rather thick, grey-brown to pinkish-violet-grey, finely rimose-areolate, the areoles flat, contiguous, delimited by a black-brown prothallus. Medulla white, I-. Apothecia lecideine, sessile, mostly rounded, to 1 mm across, brown-black to black, sometimes slightly pruinose, with a flat disc and a concolorous, raised, persistent, entire proper margin. Proper exciple brown in outer part, paler within; epithecium brown; hymenium colourless or pale brown in upper part; paraphyses weakly conglutinated, simple or sparingly branched in upper part, 1.5-2 μm thick at mid-level, the apical cell clavate, 4-5 μm wide; hypothecium colourless. Asci 8-spored, clavate, with a thin external and internal K/I+ dark blue cap surrounded by a thick K/I+ pale blue apical cap, and with a K/I- apical tube in tholus, Fuscidea-type. Ascospores 1-celled, hyaline, broadly ellipsoid, 7-10 x 5-6.5 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-; medulla UV+ bluish white. Chemistry: medulla with divaricatic acid.
Note: a mainly western species with isolated outposts in the central European mountains, found on steeply inclined, sheltered surfaces of siliceous rocks, usually in upland areas.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)

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:

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Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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Predictive model


P.L. Nimis CC BY-SA 4.0
TSB 37302


Einar Timdal - CC BY-SA NC



Pier Luigi Nimis - CC BY-SA 4.0
TSB 37302



Pier Luigi Nimis - CC BY-SA 4.0
TSB 37302



Pier Luigi Nimis - CC BY-SA 4.0
TSB 37302



Pier Luigi Nimis
Italy
TSB 37302



Pier Luigi Nimis - CC BY-SA 4.0
TSB 37302