Hebeloma nigellum

Ciri dan struktur

Cap 0.7–3.4 cm in diameter, convex to umbonate, occasionally papillate, margin involute, tacky when moist, unicolored or usually bicolored, at center umber to dark brick or snuff brown, at margin cream to pinkish buff, occasionally with remains of universal veil, partial veil present. Lamellae at maturity brownish clay, adnate to emarginate, maximum depth 2.5–6 mm, number of lamellae {L} 22–36, droplets absent, white fimbriate edge present, sometimes weakly. Stem 1.4–5.0 × 0.15–0.4 cm, whitish pruinose at apex, initially whitish lengthily fibrillose, downward, sordid brown, cylindrical, stem Q (6.5–)7.5–12.5(–18.7), fibrillose, pruinose to floccose at apex. Context firm, stem interior stuffed later hollow, flesh discoloring from base, sometimes very strongly. Smell usually raphanoid, sometimes none. Taste bitter, raphanoid. Spore deposit umber. Spores mainly amygdaloid, sometimes ellipsoid to ovoid, on ave. 11.0–13.5 × 7.0–7.5 µm, ave. Q = 1.5–1.9, yellow through yellow brown to brown, guttulation variable, almost smooth to slightly ornamented (O1 O2), perispore not or very slightly loosening (P0 (P1)), rather strongly dextrinoid ((D2) D3). Basidia 25–39(–45) × 7–10(–11) µm, ave. Q = 3.1–3.9, mostly four-spored. Cheilocystidia usually lageniform, ventricose, occasionally cylindrical, occasionally with characteristic apical wall thickening, geniculate or septate (sometimes clamped), 44–65 × 4.5–6.5 (apex) × 4–5.5 (middle) × 6.5–11 (base) µm, ratios A/M = 0.92–1.41, A/B = 0.45–0.89, B/M = 1.45–2.3. Epicutis an ixocutis, 40–75 µm thick (measured from exsiccata), maximum hyphae width 5–6.5 µm, sometimes encrusted, trama elements beneath subcutis ellipsoid, polygonal, sausage-shaped up to 15 µm wide.

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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

Hebeloma nigellum is common and widespread in Greenland and present in other parts of North America (Cripps et al. 2019). It is widespread in temperate Europe, but more commonly in arctic-alpine areas (Beker et al. 2016). Circumpolar. Twenty-one collections, and where the host was specified, 15 were recorded with Salix (S. glauca 8, S. arctophila 3, S. herbacea 3, S. arctica 1), and one recorded with Alnus alnobetulae ssp. crispa. The majority are from riversides, lakesides, fens and snowbeds, but also in humid places with S. arctophila. Most localities are on neutral ground, but it is found in acid localities as well. In the Rocky Mountains, it was recorded with Salix planifolia (Cripps et al. 2019). From lowland Europe Beker et al. 2016 noted S. aurita and S. cinerea as hosts.

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Rujukan: [1]

Habitat atau konteks temuan

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Substrat

Informasi belum tersedia pada sumber rilis ini.

Peran atau konteks

Belum dikategorikan pada rilis ini.

Reproduksi

Cap 0.7–3.4 cm in diameter, convex to umbonate, occasionally papillate, margin involute, tacky when moist, unicolored or usually bicolored, at center umber to dark brick or snuff brown, at margin cream to pinkish buff, occasionally with remains of universal veil, partial veil present. Lamellae at maturity brownish clay, adnate to emarginate, maximum depth 2.5–6 mm, number of lamellae {L} 22–36, droplets absent, white fimbriate edge present, sometimes weakly. Stem 1.4–5.0 × 0.15–0.4 cm, whitish pruinose at apex, initially whitish lengthily fibrillose, downward, sordid brown, cylindrical, stem Q (6.5–)7.5–12.5(–18.7), fibrillose, pruinose to floccose at apex. Context firm, stem interior stuffed later hollow, flesh discoloring from base, sometimes very strongly.

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

Pelat Hebeloma nigellum: tubuh buah pada panel A, peta koleksi pada B, serta spora dan keilosistidia pada C–D. Pembagian panel dan identitas mengikuti sumber.

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 nigellumBagian sumber: PMC8076164_section_87
   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 nigellumBagian sumber: ColDP NameUsage.tsv ID 3JXSF; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Hebeloma nigellumBagian 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 nigellumBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Teks sumber: CC BY 4.0 · Cathy L. Cripps, Ursula Eberhardt, Nicole Schütz, Henry J. Beker, Vera S. Evenson, Egon Horak
5. [5] Dokumentasi visual — Hebeloma nigellumBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Teks sumber: CC BY 4.0 · Cathy L. Cripps, Ursula Eberhardt, Nicole Schütz, Henry J. Beker, Vera S. Evenson, Egon Horak