Ciri dan struktur
The cap is initially convex before flattening out, and reaches a diameter of 5–13 cm. The cap surface is dry, smooth, reddish-brown to coco-brown with silky fibrils or sometimes with flattened scales and often has a slight umbo. In maturity, the fibrils usually darken to walnut brown. The flesh is white and does not change color in KOH. When bruised or injured, the flesh turns bright red within 30 seconds, and later fades to brown. The odor of crushed flesh is mild and mushroomy. The gills are initially cream colored to pale pinkish or pinkish-gray before becoming brown, then dark chocolate-brown when the spores mature. In maturity, the gills are free from attachment to the stem, packed close together, with little intervening space between them. The stem is 4–15 cm long and 1.5–2.5 cm thick, usually with an enlarged or bulbous base that has one or more coca-brown colored bands. Firm, smooth, and lacking the scales found on the cap, the stem is colored white or discolors bright red or dingy brownish in age or after handling. The partial veil is membranous, white, and forms a thin skirtlike ring on the upper portion of the stem. The spore print is chocolate brown. The smooth, thick-walled spores are elliptical, and typically measure 5–6.5 by 3.5-4 μm. Cystidia on the gill edge (cheilocystidia) are scattered, club-shaped to cylindric and have dimensions of up to 22 by 7 μm.
Habitat dan peran ekologis
The fruit bodies appear in the late fall and winter, where they grow scattered or in groups in deep leaf litter under Monterey cypresses or rarely under other trees. The mushroom is found in coastal California and is most common in the Monterey and San Francisco Bay Areas.
- Habitat atau konteks temuan
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- Substrat
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- Peran atau konteks
- Belum dikategorikan pada rilis ini.
Reproduksi
The gills are initially cream colored to pale pinkish or pinkish-gray before becoming brown, then dark chocolate-brown when the spores mature. In maturity, the gills are free from attachment to the stem, packed close together, with little intervening space between them. The stem is 4–15 cm long and 1.5–2.5 cm thick, usually with an enlarged or bulbous base that has one or more coca-brown colored bands. Firm, smooth, and lacking the scales found on the cap, the stem is colored white or discolors bright red or dingy brownish in age or after handling. The partial veil is membranous, white, and forms a thin skirtlike ring on the upper portion of the stem. The spore print is chocolate brown. The smooth, thick-walled spores are elliptical, and typically measure 5–6.5 by 3.5-4 μm.
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 Agaricus brunneofibrillosus menurut asosiasi foto pada record takson iNaturalist. Kredit: Alan Rockefeller. Identitas mengikuti sumber; bukan penentuan spesimen independen.
- Jenis
- Fotografi
- Kredit
- (c) Alan Rockefeller, some rights reserved (CC BY), uploaded by Alan Rockefeller
- Lisensi
- CC BY 4.0
- Sumber media
- Buka entri sumber
Dokumentasi tambahan

Foto yang diasosiasikan dengan Agaricus brunneofibrillosus pada iNaturalist. Identifikasi mengikuti sumber; bukan penentuan spesimen independen.
Kredit dan penggunaan
(c) Alan Rockefeller, some rights reserved (CC BY), uploaded by Alan Rockefeller
Ukuran dan format gambar disesuaikan tanpa pemotongan, retus, atau penambahan skala. Lisensi sumber dipertahankan.
Sumber profil
- [1] Agaricus brunneofibrillosus — Wikipedia (en)
- [2] Catalogue of Life Base2026-09-11 — Agaricus brunneofibrillosus
- [3] Dokumentasi visual — Agaricus brunneofibrillosus
- [4] Dokumentasi visual — Agaricus brunneofibrillosus
Rujukan halaman ini
Fungi. Agaricus brunneofibrillosus. Rilis data fungi-2026-10-12-expansion-2. https://fungi-atlas.mgadib.chatgpt.site/jamur/agaricus-brunneofibrillosus/.
Status: impor sumber; pemeriksaan editorial per profil belum selesai. Untuk klaim biologis, gunakan rujukan pada bagian terkait dan periksa konteks sumber aslinya.
