Hebeloma arcticum

Ciri dan struktur

Favoring arctic type habitats with many cheilocystidia clavate-stipitate and rather strongly dextrinoid but indistinctly ornamented spores. Cap (1.7–) 2.4–2.9 (–3.8) cm, plano-convex, with or without suggestion of obtuse umbo, with decurved margin then applanate, only weakly viscid even after heavy rainfall, dull, almost glabrous, marginal zone whitish pale due to a fine adpressed tomentum, often eroded, usually bicolored, center ochre, paler towards the margin becoming very pale brownish, hardly hygrophanous but a few hygrophanous dots. Lamellae emarginate with tooth, ventricose, number of lamellae {L} 36–44, up to 4 mm wide, initially pale, darker (clay buff) at maturity with whitish fimbriate edge and usually some watery droplets or droplets visible with a x10 lens. Stem (2.8–) 4.1–4.4 (–6.0) × 0.5–0.7 (–0.9) cm, to 0.6–0.9 cm at base, whitish fibrillose to pruinose, cylindrical, narrowly fistulose, downwards pale yellowish to pale brownish when rubbed. Context firm, thick particularly in center, whitish pale, watery when moist, in age slightly brownish downwards in stipe. Smell weakly herbaceous-raphanoid. Taste mild. Spore print at most clay buff (Munsell 10YR6/4; in TB 90.071). Spores amygdaloid, ellipsoid or ovoid, on ave. (across eight collections) 10.8–12.0 × 6.4–6.9 µm, ave. Q = 1.65–1.83, (for the holotype, measuring 102 spores, 5% to 95% percentile range 10.4–13.2 × 5.9–7.2 µm with median 11.9 × 6.5 µm and ave. 11.9 × 6.5 µm and S.D. for length 0.84 µm and for width 0.39 µm, and Q value 5% to 95% percentile range 1.57–2.04, with median 1.83 and ave. 1.83 with S.

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

Rujukan: [1]

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

Habitat dan peran ekologis

This is a new species known from a number of records in the Low Arctic zone in southern and western Greenland. The fact that it was collected several times independently may indicate that it is quite common in these areas. Eight collections, seven with Salix glauca one with S. arctophila. Most collections are from mineral-poor ground.

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

Informasi belum tersedia pada sumber rilis ini.

Peran atau konteks

Belum dikategorikan pada rilis ini.

Reproduksi

Favoring arctic type habitats with many cheilocystidia clavate-stipitate and rather strongly dextrinoid but indistinctly ornamented spores. Cap (1.7–) 2.4–2.9 (–3.8) cm, plano-convex, with or without suggestion of obtuse umbo, with decurved margin then applanate, only weakly viscid even after heavy rainfall, dull, almost glabrous, marginal zone whitish pale due to a fine adpressed tomentum, often eroded, usually bicolored, center ochre, paler towards the margin becoming very pale brownish, hardly hygrophanous but a few hygrophanous dots. Lamellae emarginate with tooth, ventricose, number of lamellae {L} 36–44, up to 4 mm wide, initially pale, darker (clay buff) at maturity with whitish fimbriate edge and usually some watery droplets or droplets visible with a x10 lens.

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.
• 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

Hebeloma arcticum A HK16.119 (holotype), photograph H. Knudsen B distribution of cited collections.

Jenis

Pelat ilmiah

Kredit

Ursula Eberhardt, Henry J. Beker, Torbjørn Borgen, Henning Knudsen, Nicole Schütz, Steen A. Elborne

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] A survey of Hebeloma (Hymenogastraceae) in Greenland — Hebeloma arcticumBagian sumber: PMC8076164_section_120
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY 4.0 · Eberhardt U, Beker HJ, Borgen T, Knudsen H, Schütz N, Elborne SA.
2. [2] Catalogue of Life Base2026-09-11 — Hebeloma arcticumBagian sumber: ColDP NameUsage.tsv ID 9Z8SK; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Hebeloma arcticumBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Media sumber: CC BY 4.0 · Ursula Eberhardt, Henry J. Beker, Torbjørn Borgen, Henning Knudsen, Nicole Schütz, Steen A. Elborne
4. [4] Dokumentasi visual — Hebeloma arcticumBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Teks sumber: CC BY 4.0 · Ursula Eberhardt, Henry J. Beker, Torbjørn Borgen, Henning Knudsen, Nicole Schütz, Steen A. Elborne