Ciri dan struktur
The thallus of Toninia squalida is composed of small, scale-like units () to about 3 mm across that often multiply and coalesce into a more or less continuous crust. Individual squamules are shallowly concave to slightly convex. Their upper surface is brown to dark brown, sometimes with a greyish cast; it is matte rather than frosted (not ) and may show fine cracking. The margins are the same colour as the surface and there are no pseudocyphellae (the tiny pores some lichens have for gas exchange). In section, the upper is 25–100 micrometres (μm) thick and includes a 20–30 μm (a thin skin of dead outer hyphae); calcium oxalate crystals are absent. The lower cortex is pale brown and only weakly developed. The (green-algal partner) forms a patchy, discontinuous layer, and the medulla lacks crystals. The fruiting bodies (apothecia) are up to 1.5 mm in diameter, with that are flat to slightly convex and again not pruinose. The (the ring of fungal tissue forming the margin) is indistinct: the rim is dark brown and may appear greenish, while the inner part is pale brown to colourless. Routine spot tests on these pigments give K– reactions; the rim may turn violet with the N (nitric acid) test, and the (the thin, often green film on top of the disc) is K– but N+ (violet). The spore-bearing layer (hymenium) is clear and 70–80 μm tall, underlain by a colourless to pale brown . Ascospores are needle-like (), measuring 17–45 × 3–5 μm, and are divided by 3–7 cross-walls (septa). No secondary metabolites (lichen products) were detected using thin-layer chromatography.
Habitat dan peran ekologis
Toninia squalida is chiefly terricolous, favouring base-rich soils and humus; it also occurs on weathered, slightly calcareous or other base-rich siliceous rocks in dry, upland situations. Young thalli are often intermixed with cyanobacteria or nest within small cyanolichen patches. In Britain it is a scarce alpine species of calcareous rocks, typically nestled among mosses along damp seepage lines; confirmed records are concentrated in the Scottish Highlands, including Ben Lawers and Caenlochan. Globally the species ranges broadly across the Northern Hemisphere, extending from temperate uplands into arctic and subarctic zones. It is listed across numerous sectors of the Pan-Arctic, and North American records include Alaskan sites where it grows on soil over rock.
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Reproduksi
The fruiting bodies (apothecia) are up to 1.5 mm in diameter, with that are flat to slightly convex and again not pruinose. The (the ring of fungal tissue forming the margin) is indistinct: the rim is dark brown and may appear greenish, while the inner part is pale brown to colourless. Routine spot tests on these pigments give K– reactions; the rim may turn violet with the N (nitric acid) test, and the (the thin, often green film on top of the disc) is K– but N+ (violet). The spore-bearing layer (hymenium) is clear and 70–80 μm tall, underlain by a colourless to pale brown . Ascospores are needle-like (), measuring 17–45 × 3–5 μm, and are divided by 3–7 cross-walls (septa). No secondary metabolites (lichen products) were detected using thin-layer chromatography.
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.
Catatan distribusi dalam narasi mengikuti sumbernya. Dokumentasi spesimen atau foto mengikuti catatan sumber. Bukti wilayah Indonesia dan penilaian konservasi tidak disimpulkan dari gambar.
Melihat dengan konteks
Dokumentasi Toninia squalida dari Wikimedia Commons. The squamulose lichen 'Toninia squalida Identifikasi mengikuti record berkas sumber.
- Jenis
- Fotografi
- Kredit
- Per Luigi Nimis
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- CC BY-SA 4.0
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Sumber profil
- [1] Toninia squalida — Wikipedia (en)
- [2] Catalogue of Life Base2026-09-11 — Toninia squalida
- [3] Dokumentasi visual — Toninia squalida
Rujukan halaman ini
Fungi. Toninia squalida. Rilis data fungi-2026-10-12-expansion-2. https://fungi-atlas.mgadib.chatgpt.site/jamur/toninia-squalida/.
Status: impor sumber; pemeriksaan editorial per profil belum selesai. Untuk klaim biologis, gunakan rujukan pada bagian terkait dan periksa konteks sumber aslinya.
