Fuscidea kochiana (Hepp) V. Wirth & Vězda

in Wirth, Beitr. naturk. Forsch. Südwestdeutschl., 31: 92, 1972. Basionym: Lecidea kochiana Hepp - Lichen-Flora von Würzburg: 61, 1824.
Synonyms: Biatora indigula (Nyl.) Walt. Watson; Biatora kochiana (Hepp) Rabenh.; Biatora rivulosa var. kochiana (Hepp) Fr.; Lecanora mammillifera Stirt.; Lecidea coriacella Nyl.; Lecidea interludens Nyl.; Lecidea morosa Dufour; Lecidea rivulosa var. kochiana (Hepp) Schaer.
Distribution: N - Frl (Tretiach & Carvalho 1995, Tretiach & Hafellner 2000), Ven, TAA (Caniglia & al. 2002, Nascimbene 2008b), Lomb, Piem (Morisi & Sereno 1995, Isocrono & al. 2004, Watson 2014), VA (Piervittori & Isocrono 1999), Emil (Tretiach & al. 2008, Fariselli & al. 2020), Lig.
Description: Thallus crustose, episubstratic, rather thick, rimose-areolate, the areoles 0.5-2.5 mm wide, grey to brownish grey, often delimited by a dark prothallus. Medulla white, I-. Apothecia biatorine, innate, brown-black, sometimes faintly grey-pruinose (especially along the margins), usually irregular in outline, often elongate, 1-2.5(-3) mm across, with a flat disc and without a distinct proper margin. Proper exciple poorly developed, very thin; epithecium pale brown; hymenium colourless, very thick, scarcely delimited towards the hypothecium, 200-400 μm high; paraphyses simple or sparingly branched in upper part, 1.5-2 μm thick at mid-level, the apical cell clavate, to 5 μm wide. Asci 8-spored, clavate, developing at varying levels, 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, at first hyaline but becoming red-brown when overmature, broadly ellipsoid, 8-11 x 5-8 µm. Photobiont chlorococcoid. Spot tests: thallus and medulla K-, C-, KC-, P-, UV+ bluish white. Chemistry: divaricatic acid in the apothecia.
Note: on steeply inclined surfaces of hard siliceous rocks in moderately shaded, humid situations, with optimum near or above treeline.
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: rather common
Subalpine belt: rather 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:

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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
Herbarium samples


P.L. Nimis CC BY-SA 4.0
TSB 41239



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (26474)
2001/12/07



Pier Luigi Nimis - CC BY-SA 4.0
TSB 42413



Pier Luigi Nimis - CC BY-SA 4.0
TSB 42413



P.L. Nimis CC BY-SA 4.0
TSB 41239



P.L. Nimis CC BY-SA 4.0
TSB 41239



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (26474)
2001/12/07


Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/


Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/