Hemileccinum impolitum

Ciri dan struktur

The cap diameter usually ranges between 5 and 12 cm, but can reach 20 cm. It is at first hemispherical, gradually becoming convex as the fungus expands and finally flat in fully mature specimens, sometimes with a slightly uplifted margin. The colour ranges from light tan, pale brown, chestnut-brown, grey, ochraceous-brown, greyish-brown or olivaceous-brown and the cap of young fruit bodies is initially covered in a velvety, finely filamentous silvery-grey coating that disappears in age. The cap cuticle turns violet with a drop of ammonium hydroxide. The stem is cylindrical, clavate or ventricose, 5 to 15 cm high by 2 to 6 cm wide, cream to pale yellow, but typically lemon-yellow at the apex and usually narrowing at the base. It has no reticulation (net), but is covered in tiny pustules (scabrosities) below the apex, sometimes browning with age. The tubes are pale yellow to lemon-yellow and usually do not discolour when cut, but may rarely stain faintly greenish-brown. The pores are small and rounded, lemon-yellow to chrome-yellow, not discolouring or rarely staining greenish-brown where handled or injured. The flesh is thick, soft, pale yellow to whitish, usually remaining the same colour when cut, or rarely becoming faintly pinkish-brown above the tubes and at the stem base. It has a sour smell somewhat reminiscent of iodine, more pronounced at the stem base. The spores are fusiform (spindle-shaped) or fusiform-ellipsoid, measuring 10–16 × 4–6 μm. Although under an optical microscope they appear perfectly smooth, when viewed with a scanning electron microscope (SEM) fine warts and tiny “pin-pricks” are visible on their surface.

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Rujukan: [1]

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Habitat dan peran ekologis

Hemileccinum impolitum is ecologically versatile, forming ectomycorrhizal associations with several species of oak (Quercus), but occasionally also with beech (Fagus) and chestnut (Castanea). It does not appear to be substrate-specific and has been reported from both calcareous and acidic soil. In the United Kingdom, it is occasionally found in southern England, although finds in other parts of the country have also been reported. Molecular phylogenetic testing has so far verified its presence in Estonia, France, Germany, Portugal, Spain, Sweden, and the Mediterranean islands of Cyprus and Sardinia.

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Rujukan: [1]

Habitat atau konteks temuan

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Substrat

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Peran atau konteks

Mitra tumbuhan

Reproduksi

The spores are fusiform (spindle-shaped) or fusiform-ellipsoid, measuring 10–16 × 4–6 μm. Although under an optical microscope they appear perfectly smooth, when viewed with a scanning electron microscope (SEM) fine warts and tiny “pin-pricks” are visible on their surface. The cap cuticle is a trichodermium, composed of cylindrical smooth hyphae with clavate terminal cells that later collapse in mature specimens.

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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.
• 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

Dokumentasi Hemileccinum impolitum menurut asosiasi foto pada record takson iNaturalist. Kredit: Davide Puddu. Identitas mengikuti sumber; bukan penentuan spesimen independen.

Jenis

Fotografi

Kredit

(c) Davide Puddu, some rights reserved (CC BY), uploaded by Davide Puddu

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] Hemileccinum impolitum — Wikipedia (en)Bagian sumber: Frozen revision 1232872539
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY-SA4.0 · Wikipedia contributors
2. [2] Catalogue of Life Base2026-09-11 — Hemileccinum impolitumBagian sumber: ColDP NameUsage.tsv ID 3KPFW; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Hemileccinum impolitumBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Media sumber: CC BY 4.0 · (c) Davide Puddu, some rights reserved (CC BY), uploaded by Davide Puddu
4. [4] Dokumentasi visual — Hemileccinum impolitumBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Teks sumber: CC BY 4.0 · (c) Davide Puddu, some rights reserved (CC BY), uploaded by Davide Puddu
5. [5] Dokumentasi visual — Hemileccinum impolitumBagian sumber: Identitas mengikuti sumber dokumentasi; bukan penentuan spesimen independen.
   Tanggal penghimpunan sumber: 2026-10-17
   Teks sumber: CC BY 4.0 · (c) Davide Puddu, some rights reserved (CC BY), uploaded by Davide Puddu