Placopsis parellina

Ciri dan struktur

Placopsis parellina is a small, spreading lichen that forms a low, patchy thallus made of thickened, tightly packed . On soil the squamules tend to overlap like roof-tiles, while on rock the thallus is usually flatter and more clearly rosette-forming. It does not produce isidia or soredia. Darker, cyanobacteria-containing cephalodia are typically scattered across the thallus as flattened to low-domed structures about 0.5–1.2 mm across. Their surface texture may range from finely ridged to smooth, and they can be so closely set that they appear almost immersed among the thalline squamules. The lichen forms sessile apothecia about (0.2–)0.5–2(–2.5) mm wide, with a conspicuously swollen, thallus-coloured rim reminiscent of some species of Ochrolechia. The is pale to dark red-brown, sometimes deepening to brown-black, and lacks pruina. Microscopically, the spore-bearing layer (the hymenium) is colourless and about 200–240 μm tall, and the colourless ascospores are broadly ellipsoid, about 16–20(–25) × (8.5–)10–15 μm.

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Rujukan: [1]

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Habitat dan peran ekologis

In southern South America, P. parellina is endemic, known from Ecuador southwards into southern Chile, and it was recorded for the first time from the Juan Fernández Archipelago in 2010. In a 1947 monograph on Placopsis, Mackenzie treated the species as having a "bicentric" Southern Hemisphere distribution, with a main range in South America and a second centre in the Australia–New Zealand region; she also mentioned an isolated high-altitude record from Java and noted that it occurs northwards along the Andes to Bolivia, where it grows on soil and rocks, often forming clusters of patches that merge.

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

Rujukan: [1]

Habitat atau konteks temuan

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Substrat

tanah

Peran atau konteks

Pembentuk liken

Reproduksi

Placopsis parellina is a small, spreading lichen that forms a low, patchy thallus made of thickened, tightly packed . On soil the squamules tend to overlap like roof-tiles, while on rock the thallus is usually flatter and more clearly rosette-forming. It does not produce isidia or soredia. Darker, cyanobacteria-containing cephalodia are typically scattered across the thallus as flattened to low-domed structures about 0.5–1.2 mm across. Their surface texture may range from finely ridged to smooth, and they can be so closely set that they appear almost immersed among the thalline squamules. The lichen forms sessile apothecia about (0.2–)0.5–2(–2.5) mm wide, with a conspicuously swollen, thallus-coloured rim reminiscent of some species of Ochrolechia.

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

Voucher herbarium Placopsis parellina (1078004), The New York Botanical Garden. Identifikasi mengikuti record spesimen sumber. Foto bahan, kemasan, atau label herbarium sebagaimana tersedia pada record institusi; bukan foto lapangan atau penentuan spesimen independen.

Jenis

Voucher herbarium

Kredit

The New York Botanical Garden

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] Placopsis parellina — Wikipedia (en)Bagian sumber: Frozen revision 1336060725
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY-SA4.0 · Wikipedia contributors
2. [2] Catalogue of Life Base2026-09-11 — Placopsis parellinaBagian sumber: ColDP NameUsage.tsv ID 77NNT; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Placopsis parellinaBagian sumber: Individual media record; identification follows the source, not independent determination
   Tanggal penghimpunan sumber: 2026-10-12
   Media sumber: CC BY 4.0 · The New York Botanical Garden