Rinodina turfacea (Wahlenb.) Körb.

Syst. Lich. Germ.: 123, 1855. Basionym: Lichen turfaceus Wahlenb. - Fl. Lappon.: 408, 1812.
Synonyms: Berengeria turfacea (Wahlenb.) Trevis.; Psora turfacea (Wahlenb.) Hepp; Rinodina orbata (Ach.) Vain.; Rinodina turfacea var. orbata (Ach.) Jatta
Distribution: N - Ven (Nascimbene & al. 2021), TAA (Nascimbene & al. 2022), Lomb, Piem (Isocrono & al. 2004), VA (Piervittori & Isocrono 1999, Valcuvia 2000), Lig.
Description: Thallus crustose, episubstratic, thin to thick, rugose to verrucose, pale brown, grey-brown or whitish grey, without a distinct prothallus. Apothecia lecanorine, usually abundant, 0.5-1.7(-2) mm across, constricted at base, with a black to brownish black, concave to flat disc, and a thin, entire to crenulate or flexuose thalline margin. Thalline exciple 40-70 µm wide, corticate, the cortex I+ pale blue, the medulla with crystals; epithecium brownish; hymenium colourless, 110-170 μm high, I+ blue; paraphyses 1.5-2 μm thick in lower part, the apical cells to 3-3.5 μm wide, with a brown cap; hypothecium colourless, 20-50 µm high. Asci 8-spored, broadly clavate, the K/I+ blue tholus penetrated by a faintly amyloid apical cushion with parallel or diverging flanks, the wall K/I-, surrounded by a K/I+ blue outer layer, Lecanora-type. Ascospores 1-septate, dark olive to olive-brown, ellipsoid, 20-35 x 9-14 μm, with a well developed torus and an ontogeny of type A (apical wall thickening after septum formation). Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-. Chemistry: sphaerophorin and variable amounts of variolaric acid.
Note: an arctic-alpine, circumpolar lichen found on soil rich in humus and plant remains in tundra-like habitats.
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: common
Subalpine belt: rather common
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:

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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 14330



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (14330)
2001/12/11