Thelopsis melathelia Nyl.
Flora, 47: 358, 1864.

Synonims: Sagedia melathelia (Nyl.) Jatta, Sagedia rugosa Anzi, Thelopsis rugosa (Anzi) Jatta, Thelopsis umbratula Nyl.

Is present in the following regions (Click here for a map with abbreviations):
N - Frl, Ven, TAA, Lomb, Piem (TSB).

References (type author's name):

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Thelopsis melathelia Nyl.

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On soil, terricolous mosses, plant debris
Photobiont: Trentepohlia
Growth form: Crustose
Reproductive strategy: Mainly sexual
Poleophoby: 3


  • pH of the substrata: subneutral (3) to intermediate between subneutral and basic (4)
  • in shaded sites (2) to sites with diffuse light but scarce direct solar irradiation (3)
  • humidity requirements: rather hygrophytic (2) to mesophytic (3)
  • in sites with no eutrophication (1) to sites with very weak eutrophication (2)
  • from the oroboreal belt of the Alps (4) to the vegetation above treeline (5)

    Note: an arctic-alpine, circumpolar species, found on muribund bryophytes, humic soil and plant remains over calcareous substrata.

      Commonness-rarity status:
    • Alpine Italy: rather rare
    • Subalpine Italy: very rare
    • Oromediterranean Italy: absent
    • Montane Italy: absent
    • Padanian Italy: absent
    • Dry submediterranean Italy: absent
    • Dry mediterranean Italy: absent
    • Humid submediterranean Italy: absent
    • Humid mediterraenan Italy: absent