Umbilicaria nylanderiana

Ciri dan struktur

The thallus of Umbilicaria nylanderiana is typically (having single lobe), rigid, and brittle, often with lacerated margins, although it can sometimes be polyphyllous (multi-lobed), particularly in wind-exposed habitats. It usually measures up to 6 cm across, but Antarctic specimens are considerably smaller, growing to about 2 cm in diameter. The upper thallus surface is dark brown to grey, characterised by densely packed, high, rounded ridges, while the lower surface is black and smooth. Reproductive features of the lichen include black, , and apothecia (fruiting bodies), which are more common in Neotropic specimens and rarer in European samples. Asci (spore-bearing cells) are club shaped (). Ascospores typically number eight per ascus, ranging from unicellular to multicellular, and are hyaline or brown, measuring 7–16 by 5–9 μm. The thalloconidia are unicellular, dark brown to black, and oval or ellipsoid, typically covering the entire lower surface except at the peripheral areas.

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Rujukan: [1]

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Habitat dan peran ekologis

Umbilicaria nylanderiana is primarily found on the vertical to horizontal faces of large boulders or cliffs in the alpine zone, frequently above the snow line in winter. Its distribution is global, occurring throughout Europe, North America, and South America. This species is the only common brown Umbilicaria in Ecuador and occupies ecological niches similar to those of several brown species in North America, Europe, and Asia, such as U. hyperborea, U. deusta, and U. arctica. In Antarctica, its distribution is restricted to the maritime Antarctic region, ranging from the South Orkney Islands in the north to as far south as 68°S along the west coast of the Antarctic Peninsula and its offshore islands. In this region, it is found only in coastal sites at elevations between 5 and 200 m above sea level, often on north-facing volcanic rocks. While generally rare in Antarctica, it can be locally abundant in some environments.

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Rujukan: [1]

Habitat atau konteks temuan

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Substrat

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Peran atau konteks

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Reproduksi

Reproductive features of the lichen include black, , and apothecia (fruiting bodies), which are more common in Neotropic specimens and rarer in European samples. Asci (spore-bearing cells) are club shaped (). Ascospores typically number eight per ascus, ranging from unicellular to multicellular, and are hyaline or brown, measuring 7–16 by 5–9 μm. The thalloconidia are unicellular, dark brown to black, and oval or ellipsoid, typically covering the entire lower surface except at the peripheral areas.

Sebagian uraian ditampilkan dalam bahasa sumber; terjemahannya belum tersedia atau belum lolos pemeriksaan.

Rujukan: [1]

Catatan identitas dan cakupan

• Nama diterima mengikuti Catalogue of Life Base2026-09-11; uraian mempertahankan konsep dan nama sumber aslinya.
• Original geographic, specimen and life-cycle scope retained; source import awaits individual editorial review.
• Impor dan terjemahan otomatis belum diperiksa editorial per profil. Struktur reproduktif yang disebutkan tidak membuktikan seluruh siklus hidup diketahui.
• Pengukuran pada uraian mengikuti spesimen, kultur, dan metode sumber; angka tidak diperluas ke semua populasi.

Melihat dengan konteks

Dokumentasi Umbilicaria nylanderiana menurut asosiasi foto pada record takson iNaturalist. Kredit: Vesa Oikonen. Identitas mengikuti sumber; bukan penentuan spesimen independen.

Jenis

Fotografi

Kredit

no rights reserved, uploaded by Vesa Oikonen

Lisensi

CC0 1.0

Sumber media

Buka entri sumber

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Dokumentasi tambahan

Sumber profil

1. [1] Umbilicaria nylanderiana — Wikipedia (en)Bagian sumber: Frozen revision 1371251793
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY-SA4.0 · Wikipedia contributors
2. [2] Catalogue of Life Base2026-09-11 — Umbilicaria nylanderianaBagian sumber: ColDP NameUsage.tsv ID 7DGSM; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Umbilicaria nylanderianaBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Media sumber: CC0 1.0 · no rights reserved, uploaded by Vesa Oikonen
4. [4] Dokumentasi visual — Umbilicaria nylanderianaBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Teks sumber: CC0 1.0 · no rights reserved, uploaded by Vesa Oikonen
5. [5] Dokumentasi visual — Umbilicaria nylanderianaBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Teks sumber: CC0 1.0 · no rights reserved, uploaded by Vesa Oikonen