Flavoplaca citrina

Ciri dan struktur

Flavoplaca citrina is a crustose (crust-like) lichen with a yellow-green thallus (the main body of the lichen). The thallus is (powdery) and entirely covered with granular soredia (tiny, powdery reproductive propagules). It can vary from thin to moderately thick and is usually soft. Thicker thalli often break into irregular, coarse (small, discrete areas), typically appearing green-yellow or green in shaded conditions. Very thick thalli, which lack soredia, have convex (rounded) areoles. The soredia, measuring between 0.02 and 0.07 mm in diameter, form at the margins of these areoles and are the same colour as the thallus. There is no (the initial growth stage of the lichen) or, if present, it is white. Apothecia (the fruiting bodies) are frequent, ranging from 0.3 to 1.5 mm in diameter. They start immersed in the thallus but become sessile (sitting on the surface) as they mature. These apothecia are flat and can swell slightly. The edges of the apothecia (s) are persistent, granular, and sorediate, sometimes appearing frosty (). The is yellow-orange with a green-yellow margin. Paraphyses (sterile filamentous structures in the apothecia) often have narrow tips or are club-shaped () up to 3 μm wide. The asci (spore-producing cells) are typically long and narrow, containing broadly ellipsoid ascospores that measure 10.5–14.8 μm in length and 5–7.5 μm in width, with a central septum (dividing partition) 3–5 μm wide, making up about one-third of the spore's length. Conidia (asexual spores) are mostly (rod-shaped). All parts of the lichen react with potassium hydroxide solution (K) solution to turn purple.

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Rujukan: [1]

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Habitat dan peran ekologis

Flavoplaca citrina is commonly found on calcareous (chalky) or nutrient-rich substrates, including limestone, concrete, mortar, bone, and asbestos cement, especially on walls in sunny locations. It is less common on naturally calcareous or nutrient-enriched siliceous rocks and metalwork, and rarely occurs on wood or bark (corticolous). The species is cosmopolitan in distribution. Flavoplaca citrina is nitrophilic (adapted to nitrogen-rich environments) and is frequently found on cliffs below birds' nests, where it benefits from nitrogen enrichment by bird excrement. Research has identified F. citrina as an indicator species for bird-influenced habitats, particularly on cliff faces where peregrine falcons and ravens nest, where it thrives in localised nutrient-rich zones within otherwise nutrient-poor ecosystems. In North and Central America, Flavoplaca citrina is common in temperate regions and more occasional in the Arctic and at higher elevations in Mexico and the Caribbean. Clifford Wetmore described it as growing in exposed situations on both calcareous and non-calcareous rock, though it has also been recorded from bark, wood, and sometimes bryophytes.

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

Rujukan: [1]

Habitat atau konteks temuan

Informasi belum tersedia pada sumber rilis ini.

Substrat

kayu

Peran atau konteks

Pembentuk liken

Reproduksi

Flavoplaca citrina is a crustose (crust-like) lichen with a yellow-green thallus (the main body of the lichen). The thallus is (powdery) and entirely covered with granular soredia (tiny, powdery reproductive propagules). It can vary from thin to moderately thick and is usually soft. Thicker thalli often break into irregular, coarse (small, discrete areas), typically appearing green-yellow or green in shaded conditions. Very thick thalli, which lack soredia, have convex (rounded) areoles. The soredia, measuring between 0.02 and 0.07 mm in diameter, form at the margins of these areoles and are the same colour as the thallus. There is no (the initial growth stage of the lichen) or, if present, it is white.

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 Flavoplaca citrina dari Wikimedia Commons. Mealy Firedot Lichen ( Flavoplaca citrina ) Identifikasi mengikuti record berkas sumber.

Jenis

Fotografi

Kredit

Jason Grant

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.

Sumber profil

1. [1] Flavoplaca citrina — Wikipedia (en)Bagian sumber: Frozen revision 1347125972
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY-SA4.0 · Wikipedia contributors
2. [2] Catalogue of Life Base2026-09-11 — Flavoplaca citrinaBagian sumber: ColDP NameUsage.tsv ID 6J9B9; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Flavoplaca citrinaBagian sumber: Individual media record; identification follows the source, not independent determination
   Tanggal penghimpunan sumber: 2026-10-12
   Media sumber: CC BY 4.0 · Jason Grant