Fellhanera colchica (Vězda) Llop

Lichenologist, 39: 393, 2007. Basionym: Bacidia colchica Vezda - Folia Geobot. Phytotaxon., 15: 206, 1979.
Synonyms:
Distribution: S - Camp (Puntillo & al. 2000, Puntillo 2000. Nimis & Tretiach 2004, Llop 2007).
Description: Thallus crustose, thinly episubstratic, greyish green, minutely granulose to farinose, sometimes inconspicuous. Apothecia biatorine, yellowish, reddish brown or orange-brown, 0.1-0.3 mm across, with a flat to convex disc and a usually paler proper margin. Exciple paraplectenchymatous, colourless to yellowish brown near the hypothecium; without crystals; epithecium not well differentiated from the hymenium; hymenium colourless, 35-50 μm high; paraphyses branched and anastomosing, 1-1.2 μm thick at mid-level, the apical cells slightly swollen, up to 3-4 μm wide; hypothecium reddish brown. Asci 8-spored, clavate, with a K/I+ blue apical dome containing a darker blue, tubular ring-structure, and an amyloid coat, Byssoloma-type. Ascospores 5-7-septate, hyaline, ellipsoid, slightly tapering at one end; (16-)18-21(-25) x 2.5-4 μm. Pycnidia violaceous black, slightly immersed, the inner wall dark violaceous, K+ purplish. Conidia colourless, clustered as a whitish drop in the ostiole, oblong to obpyriform. Photobiont chlorococcoid. Spot tests: thallus and apothecia K-, C-, KC-, P-, UV-. Chemistry: thallus without lichen substances.
Note: a humid subtropical species described from Caucasus and also reported from the Pyrenees, known from a single locality in Italy, a very humid gorge near the Tyrrhenian coast. It is included in the Italian red list of epiphytic lichens as “Critically Endangered” (Nascimbene & al. 2013c).
Growth form: Crustose
Substrata: leaves
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Restricted to humid-warm, oceanic areas

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: extremely rare
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 31886



Domenico Puntillo; Owner: Domenico Puntillo
Italy