Ramonia melathelia (Nyl.) Ertz

in Ertz & al., Lichenologist, 53: 56, 2021. Basionym: Thelopsis melathelia Nyl. - Flora, 47: 358, 1864.
Synonyms: Sagedia melathelia (Nyl.) Jatta; Sagedia rugosa Anzi; Thelopsis melathelia Nyl.; Thelopsis rugosa (Anzi) Jatta; Thelopsis umbratula Nyl.
Distribution: N - Frl, Ven, TAA (Nascimbene & al. 2022), Lomb, Piem (TSB 32915), VA (Nascimbene & al. 2021).
Description: Thallus crustose, episubstratic, finely granulose, orange-brown to reddish-brown when fresh, turning grey-green in the herbarium. Apothecia black, remaining perithecioid and often considered as true perithecia, half-immersed, often contiguous, 0.5-0.8 mm across, with a wrinkled surface. Exciple colourless within, dark orange-brown throughout in outer part; hymenium colourless, I-, K/I-; hamathecium of thread-like, unbranched paraphyses and periphyses. Asci 80-150-spored, cylindrical to oblong, tapering towards the apex, the wall thin, I+ light blue, without a tholus. Ascospores 3-septate, hyaline, spindle-shaped, 11-20 x 4-7 μm, surrounded by a thin gelatinous perispore. Photobiont trentepohlioid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: an arctic-alpine, circumpolar species found on moribund bryophytes, humus-rich soil and plant remains over more or less calcareous substrata near or above treeline.
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: rather rare
Subalpine belt: very rare
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
Index Fungorum GBIF


P.L. Nimis CC BY-SA 4.0
TSB 41843



P.L. Nimis CC BY-SA 4.0
TSB 41843



P.L. Nimis CC BY-SA 4.0
TSB 41843



P.L. Nimis CC BY-SA 4.0
TSB 41843



P.L. Nimis CC BY-SA 4.0
TSB 43805



P.L. Nimis CC BY-SA 4.0
TSB 43805



P.L. Nimis CC BY-SA 4.0
TSB 43805



P.L. Nimis CC BY-SA 4.0
TSB 32915



P.L. Nimis CC BY-SA 4.0
TSB 32915