Lichina pygmaea

Ciri dan struktur

Lichina pygmaea is a small shrubby marine lichen that forms loose tufts, sometimes spreading into extensive mat-like patches, with thalli up to about 1 cm long. Its branches are flattened and usually divided in a hand-like () pattern, up to about 2 mm thick, though the tips may become more rounded. The thallus is dark brown-black to black and shiny, and when wet becomes gelatinous and rubbery; Lightfoot noted that it appears dark green when held to the light. The is well developed and made of several layers of rectangular cells, while the cyanobacterial cells are mainly concentrated beneath it in the medulla and subcortical layers. The apothecia (fruiting bodies) are roughly spherical, borne at the branch tips, and usually pore-like, reaching about 2 mm in diameter, and the ascospores are colourless, single-celled (aseptate), and 22–29 × 11–16 micrometres. Compared with the related L. confinis, it is typically larger, with distinctly flattened, repeatedly forking to palmately divided branches rather than cylindrical ones, and a more clearly developed cortex.

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Rujukan: [1]

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Habitat dan peran ekologis

Lichina pygmaea grows on maritime rock in the intertidal zone, especially on steep or vertical surfaces that are regularly washed by the tide. It is most frequent on sunny rock faces and may also occur on less steeply sloping shores where aspect and moisture conditions are favourable. The species is common on exposed and very exposed shores, occurs more sparsely on semi-exposed and fairly sheltered coasts, and is generally absent from sheltered shores where competition from fucoid algae becomes greater. In Britain and Ireland it typically forms a distinct band between the Hydropunctaria maura zone above and the barnacle–Patella vulgata zone below, often growing among barnacles, although its exact position varies regionally with shore exposure and steepness. In microbiome surveys from Brittany, L. pygmaea was treated as a lower-eulittoral species immersed for several hours each day, in contrast to L. confinis, which occupies the upper eulittoral and is usually exposed mainly to splashing and sea spray. The species is widespread on Atlantic coastlines, with a range extending from western and north-western Europe to north-western Africa; it is especially abundant on European coasts of the North Atlantic, including Britain and Ireland.

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Rujukan: [1]

Habitat atau konteks temuan

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Substrat

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Peran atau konteks

Pembentuk liken

Reproduksi

The apothecia (fruiting bodies) are roughly spherical, borne at the branch tips, and usually pore-like, reaching about 2 mm in diameter, and the ascospores are colourless, single-celled (aseptate), and 22–29 × 11–16 micrometres. Compared with the related L. confinis, it is typically larger, with distinctly flattened, repeatedly forking to palmately divided branches rather than cylindrical ones, and a more clearly developed cortex.

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 Lichina pygmaea menurut asosiasi foto pada record takson iNaturalist. Kredit: anasacuta. Identitas mengikuti sumber; bukan penentuan spesimen independen.

Jenis

Fotografi

Kredit

(c) anasacuta, some rights reserved (CC BY), uploaded by anasacuta

Lisensi

CC BY 4.0

Sumber media

Buka entri sumber

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Dokumentasi tambahan

Sumber profil

1. [1] Lichina pygmaea — Wikipedia (en)Bagian sumber: Frozen revision 1369821369
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY-SA4.0 · Wikipedia contributors
2. [2] Catalogue of Life Base2026-09-11 — Lichina pygmaeaBagian sumber: ColDP NameUsage.tsv ID 6PY2Z; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Lichina pygmaeaBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Media sumber: CC BY 4.0 · (c) anasacuta, some rights reserved (CC BY), uploaded by anasacuta
4. [4] Dokumentasi visual — Lichina pygmaeaBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Teks sumber: CC BY 4.0 · (c) anasacuta, some rights reserved (CC BY), uploaded by anasacuta