Bacidia rubella

Ciri dan struktur

Bacidia rubella is characterized by a thallus (the main body of the lichen) that ranges in colour from grey to yellow-green. The thallus has a distinctive texture that varies from thinly to richly -, meaning it is covered with small granular structures (isidia) that measure 60–120 μm in diameter. The cells (the photosynthetic algal partner in the lichen symbiosis) are 5–17 μm in diameter. Apothecia (fruiting bodies) are often absent in this species. When present, they typically measure 0.7–1 mm in diameter and are usually distinctly constricted at the base. These apothecia are flat, sometimes becoming convex, and range in colour from pale to dark red-brown. The margin of the apothecia is sometimes covered with a white, powdery coating (). The (the rim or margin of the apothecium) is colourless in its lower part, while the upper part is pale yellow-orange or yellow-straw coloured. In pruinose specimens, the exciple sometimes displays radiating streaks of minute crystals. The exciple is composed of hyphae (fungal filaments) with internal spaces () measuring 1–2 μm in diameter, or up to 5 μm in diameter toward the outer edge. The hymenium (the spore-producing layer) is 70–105 μm high and is either colourless or faintly orange-red or yellow in its upper part. The (the tissue beneath the hymenium) is colourless, or pale yellow or orange-straw coloured in its upper part, and may intensify to yellow when treated with potassium hydroxide solution (K). The paraphyses (sterile filaments among the spore sacs) are 1–1.5 μm in diameter, either unbranched or forked in their upper portion, with their tips often slightly swollen to about 2.5 μm in diameter.

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Rujukan: [1]

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Habitat dan peran ekologis

In the United Kingdom, Bacidia rubella occurs mainly on the bark of mature trees, particularly those with nutrient-rich surfaces such as maple Acer, ash (Fraxinus), and elm (Ulmus). It is typically found in parklands, along roadsides, and within woodlands growing on fertile soils. On rare occasions, it may also inhabit sheltered gravestones or walls. This species is widespread throughout Britain and Ireland but becomes less common in western Scotland and is absent from areas affected by pollution. Bacidia rubella is broadly distributed beyond the United Kingdom, occurring across much of lowland central and northern Europe. Within the Mediterranean region, it typically occupies montane areas with climates that are more continental compared to coastal or lowland species within the group. Its ecological preference is nitrophilous, favouring habitats enriched by nutrients. This ecological adaptability enables Bacidia rubella to grow in a variety of continental environments, although it generally avoids heavily polluted areas. In Nepal, Bacidia rubella has been reported at 300 m elevation in a compilation of published records.

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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

Bacidia rubella is characterized by a thallus (the main body of the lichen) that ranges in colour from grey to yellow-green. The thallus has a distinctive texture that varies from thinly to richly -, meaning it is covered with small granular structures (isidia) that measure 60–120 μm in diameter. The cells (the photosynthetic algal partner in the lichen symbiosis) are 5–17 μm in diameter. The hymenium (the spore-producing layer) is 70–105 μm high and is either colourless or faintly orange-red or yellow in its upper part. The (the tissue beneath the hymenium) is colourless, or pale yellow or orange-straw coloured in its upper part, and may intensify to yellow when treated with potassium hydroxide solution (K).

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 Bacidia rubella dari Wikimedia Commons. Frosty-rimmed Dot Lichen ( Bacidia rubella ) Identifikasi mengikuti record berkas sumber.

Jenis

Fotografi

Kredit

mjpapay

Lisensi

CC BY 4.0

Sumber media

Buka entri sumber

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Sumber profil

1. [1] Bacidia rubella — Wikipedia (en)Bagian sumber: Frozen revision 1342675594
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY-SA4.0 · Wikipedia contributors
2. [2] Catalogue of Life Base2026-09-11 — Bacidia rubellaBagian sumber: ColDP NameUsage.tsv ID 5VYCW; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Bacidia rubellaBagian sumber: Individual media record; identification follows the source, not independent determination
   Tanggal penghimpunan sumber: 2026-10-12
   Media sumber: CC BY 4.0 · mjpapay