Pertusaria flavida

Ciri dan struktur

Pertusaria flavida has a distinctive pale or bright sulphur yellow to yellow-green-grey or yellow-brown thallus (the main body of the lichen). The thallus occasionally has a pale to dark grey margin and is characteristically rather thick and uneven, with a more or less coarsely (cracked) appearance. The upper surface of the thallus is coarsely warted, flat, smooth, or somewhat roughened in texture. A distinctive feature of this species is the numerous isidia (small outgrowths used for vegetative reproduction), which are more or less spherical () or shortly cylindrical- in shape. These isidia occasionally dissolve into soredia (powdery propagules consisting of fungal hyphae wrapped around algal cells), sometimes obscuring the thallus entirely. When shed, these structures leave faint cortical scars on the thallus surface. Apothecia (fruiting bodies) are very rare in this species. When present, approximately 2–5 apothecia are immersed within hemispherical warts that are sorediate-isidiate. The of the apothecium is black-brown and (dot-like). The asci (spore-producing sacs) contain 8 spores each (sometimes as few as four). The measure 60–100 by 25–40 μm, with a wall thickness of 7–10 μm, becoming less than 20 μm thick at the ends. Chemical spot tests reveal that the thallus is C+ (orange) and KC+ (orange), K–, and Pd–. Under ultraviolet light, the thallus fluoresces bright orange or yellow-orange, indicating the presence of thiophaninic acid and an unidentified secondary metabolite.

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Rujukan: [1]

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Habitat dan peran ekologis

In the United Kingdom, this lichen species inhabits both smooth and rough bark of mature broad-leaved trees that receive abundant light, with a particular preference for older oak (Quercus) specimens. Its typical habitats include open woodlands, parkland, and trees situated along roadsides. The distribution pattern shows a strong presence throughout southern and eastern Britain, extending into central and northern Wales. The species appears more sporadically across Scotland, while in Ireland it is encountered only infrequently. It is widespread in mountainous regions of the Iberian Peninsula, and has been documented in many localities in Spain and Portugal.

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

Rujukan: [1]

Habitat atau konteks temuan

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Substrat

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Peran atau konteks

Pembentuk liken

Reproduksi

Pertusaria flavida has a distinctive pale or bright sulphur yellow to yellow-green-grey or yellow-brown thallus (the main body of the lichen). The thallus occasionally has a pale to dark grey margin and is characteristically rather thick and uneven, with a more or less coarsely (cracked) appearance. The upper surface of the thallus is coarsely warted, flat, smooth, or somewhat roughened in texture. A distinctive feature of this species is the numerous isidia (small outgrowths used for vegetative reproduction), which are more or less spherical () or shortly cylindrical- in shape. These isidia occasionally dissolve into soredia (powdery propagules consisting of fungal hyphae wrapped around algal cells), sometimes obscuring the thallus entirely.

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 Pertusaria flavida menurut asosiasi foto pada record takson iNaturalist. Kredit: Katharine Khamhaengwong. Identitas mengikuti sumber; bukan penentuan spesimen independen.

Jenis

Fotografi

Kredit

(c) Katharine Khamhaengwong, some rights reserved (CC BY), uploaded by Katharine Khamhaengwong

Lisensi

CC BY 4.0

Sumber media

Buka entri sumber

Gambar menunjukkan objek menurut identifikasi sumber, bukan verifikasi independen spesimen oleh Fungi. Tidak ada skala baru yang ditambahkan.

Dokumentasi tambahan

Sumber profil

1. [1] Pertusaria flavida — Wikipedia (en)Bagian sumber: Frozen revision 1288939810
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY-SA4.0 · Wikipedia contributors
2. [2] Catalogue of Life Base2026-09-11 — Pertusaria flavidaBagian sumber: ColDP NameUsage.tsv ID 76V75; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Pertusaria flavidaBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Media sumber: CC BY 4.0 · (c) Katharine Khamhaengwong, some rights reserved (CC BY), uploaded by Katharine Khamhaengwong
4. [4] Dokumentasi visual — Pertusaria flavidaBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Teks sumber: CC BY 4.0 · (c) Katharine Khamhaengwong, some rights reserved (CC BY), uploaded by Katharine Khamhaengwong