Polyozellus tristis

Ciri dan struktur

Basidiomata annual, resupinate, membranaceous, effused – often to several tens of centimetres in diameter. Mature parts continuous, with a cottony texture when fresh and a rather firm, fibrous and compact, yet quite soft and elastic texture when dried. Hymenium smooth, but sometimes strongly undulating; blue grey to purplish-brown when fresh, blue grey or blue-greenish grey to brown, with a reddish hue, when dried. Immature parts discontinuous, byssoid with a cottony texture, both when fresh and when dried. Subhymenium and hymenium of immature parts blue green, blue or blue grey when fresh and pale grey blue or pale blue grey to grey blue or blue grey when dried, sometimes with a green hue. Subiculum well developed, loose, fibrous, orange brown; often forms the outer edge of basidiomata, extending noticeably beyond the hymenium. Hyphal cords lacking, but loose bundles of subicular hyphae sometimes present. Hyphal system monomitic, clamp connections absent from all hyphae. Subicular hyphae noticeably long and straight, thick-walled; forming a loose tissue. Individual hyphae (4.5) 4.6–7.4 μm wide, with a mean width of 5.4–6.2 μm; orange brown to dark brown in KOH, orange brown to brown in water. Subhymenial hyphae often somewhat sinuous, thin to thick-walled; forming a rather dense tissue. Individual hyphae 3.2–6.2 (7.2) μm wide, with a mean width of 3.9–4.5 μm; pale orange brown to pale green in KOH, blue green in the presence of air; pale green to pale greenish-orange in water, with strongly granular contents. Encrustation granular, probably amyloid (hard to observe due to the colour); blackish in KOH, dark blue green in the presence of air; blackish in water; scattered in occurrence on the upper parts of subhymenial hyphae and on the lower parts of basidia.

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Rujukan: [1]

Pengukuran mengikuti objek, spesimen atau kultur, dan metode yang disebutkan sumber. Baca uraian asli untuk konteks lengkap.

Habitat dan peran ekologis

Data on habitat are scarce to date, but recent Scandinavian collections have been made in mature to old deciduous or mixed forests on soil with intermediate to high pH. Pseudotomentella tristis has been found to form ectomycorrhiza with at least Betula pendula and Fagus sylvatica (Kõljalg et al. 2005, Nilsson et al. 2019). Basidiomata encountered in: Estonia, Finland, Norway, Slovakia, Slovenia and Sweden. Soil or root tip samples confirm presence also in: Germany.

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Habitat atau konteks temuan

hutan

Substrat

tanah

Peran atau konteks

Mitra tumbuhan

Reproduksi

Basidiomata annual, resupinate, membranaceous, effused – often to several tens of centimetres in diameter. Mature parts continuous, with a cottony texture when fresh and a rather firm, fibrous and compact, yet quite soft and elastic texture when dried. Hymenium smooth, but sometimes strongly undulating; blue grey to purplish-brown when fresh, blue grey or blue-greenish grey to brown, with a reddish hue, when dried. Immature parts discontinuous, byssoid with a cottony texture, both when fresh and when dried. Subhymenium and hymenium of immature parts blue green, blue or blue grey when fresh and pale grey blue or pale blue grey to grey blue or blue grey when dried, sometimes with a green hue. Subiculum well developed, loose, fibrous, orange brown; often forms the outer edge of basidiomata, extending noticeably beyond the hymenium.

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Rujukan: [1]

Catatan identitas dan cakupan

• Nama diterima mengikuti Catalogue of Life Base2026-09-11; uraian mempertahankan konsep dan nama sumber aslinya.
• Preserve original treatment localities, hosts and substrate scope. Materials examined describe documented specimens, not the full global range.
• 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

Morphological features of P. tristis, mounted in KOH and macroscopically. A (LK54/13) B (lectotype) C (epitype), basidiospores in frontal face D (epitype) E (TAA 159485) in lateral face F subicular hyphae (epitype) G young basidiome (TU 115439) H mature basidiome (TU 115642).

Jenis

Pelat ilmiah

Kredit

Sten Svantesson, Karl-Henrik Larsson, Urmas Kõljalg, Tom W. May, Patrik Cangren, R. Henrik Nilsson, Ellen Larsson

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] Solving the taxonomic identity of Pseudotomentella tristis s.l. (Thelephorales, Basidiomycota) – a multi-gene phylogeny and taxonomic review, integrating ecological and geographical data — Hypochnus sitnensisBagian sumber: PMC6477855_section_97
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY 4.0 · Svantesson S, Larsson KH, Kõljalg U, W May T, Patrik Cangren, Henrik Nilsson R, Larsson E.
2. [2] Catalogue of Life Base2026-09-11 — Polyozellus tristisBagian sumber: ColDP NameUsage.tsv ID B2M59; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Pseudotomentella tristisBagian sumber: Individual media record; identification follows the source, not independent determination
   Tanggal penghimpunan sumber: 2026-10-12
   Media sumber: CC BY 4.0 · Sten Svantesson, Karl-Henrik Larsson, Urmas Kõljalg, Tom W. May, Patrik Cangren, R. Henrik Nilsson, Ellen Larsson