01 / Morfologi

Ciri dan struktur

The cap of the fruit body is 5 to 8.5 cm in diameter, and depending on its age, may range from egg-shaped to convex to somewhat flattened. Older specimens may have edges that are curved upwards. The color is white or pale tan in the center of the cap; older specimens may have areas of discolored tissue colored brownish-red shades. Sometimes, the edge of the cap has radial grooves—up to 4 mm long—that mirror the position of the underlying gills. When moist, the cap is sticky to the touch; when dry, it is shiny, usually without any remnants of the thin volva. The white gills are crowded close together, and are free from attachment to the stem. They are subventricose: slightly swollen in the middle, and tapering near the ends. The stem is 8.5 to 16 cm long by 0.9 to 1.6 cm thick, and slightly thicker at the base than at the top. It is stuffed with whitish hyphae that resemble cotton. The surface of the stem is smooth or has delicate tufts of soft, white, woolly hairs. There is a rimmed bulb at the base of the stem, which can reach a diameter of over 3 cm. The ring—located on the upper portion of the stem, 1.2 - 1.7 cm from the top—is white, membranous, and long-lasting. The volva remains closely attached to the bulb, although a portion may stretch out like a thin membrane and adhere to the base of the stem before collapsing. The flesh will slowly turn pinkish-brown to chocolate-brown when it has been injured or bruised. Young specimens do not have any distinct odor, but fruit bodies may smell slightly of onions or garlic in age. Viewed in deposit, like with a spore print, the basidiospores of A. aestivalis are white.

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Rujukan: [1]

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

02 / Kehidupan

Habitat dan peran ekologis

Fruit bodies biasanya muncul dari akhir musim gugur June until. Di Amerika Utara, telah ditemukan di negara bagian New England, serta Alabama, New York, dan Virginia. Distribusi ini membentang di utara ke provinsi-provinsi tenggara Canada and selatan ke Florida. Fruit bodies of the fungus grow on the ground in deciduous, coniferous, and mixed forests. Ada yang lebih suka kayu ek yang mengandung Tsuga or Pinus species, serta kayu bayak dengan Picea, Abies, dan Betula. A. aestivalis adalah spesies mikoriza, yang berarti membentuk hubungan yang saling menguntungkan di mana vegetatif hifa jamur tumbuh di sekitar dan mengetuk akar pohon dan semak kecil. Dengan cara ini, tanaman lebih mampu menyerap fosfor dan nutrisi tanah lainnya, sementara jamur menerima kelembaban, perlindungan, dan produk sampingan gizi dari metabolisme tanaman.

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

Rujukan: [1]

Habitat atau konteks temuan
hutan
Substrat
tanah
Peran atau konteks
Mitra tumbuhan
Temukan hubungan serupa
03 / Siklus hidup

Reproduksi

Viewed in deposit, like with a spore print, the basidiospores of A. aestivalis are white. Examination with a microscope reveals further details: they are roughly spherical, hyaline (translucent) and thin-walled, with dimensions of 7.8–8.8 μm. The spores are amyloid, meaning that they will absorb iodine when stained with Melzer's reagent and appear blue to blackish-blue. The spore-bearing cells, the basidia, are four-spored, thin-walled, and measure 32–60 long by 4–13 μm thick. There are no clamps present at the bases of the basidia.

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

Rujukan: [1]

04 / Batas informasi

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.

05 / Dokumentasi

Melihat dengan konteks

Dokumentasi Amanita aestivalis menurut asosiasi foto pada record takson iNaturalist. Kredit: Garrett Taylor. Identitas mengikuti sumber; bukan penentuan spesimen independen.

Jenis
Fotografi
Kredit
no rights reserved, uploaded by Garrett Taylor
Lisensi
CC0 1.0
Sumber media
Buka entri sumber

Gambar menunjukkan objek menurut identifikasi sumber, bukan verifikasi independen spesimen oleh Fungi. Tidak ada skala baru yang ditambahkan.

06 / Rujukan

Sumber profil

  1. [1] Amanita aestivalis — Wikipedia (en)Bagian sumber: Frozen revision 1195437288
    Tanggal penghimpunan sumber: 2026-10-12
    Teks sumber: CC BY-SA4.0 · Wikipedia contributors
  2. [2] Catalogue of Life Base2026-09-11 — Amanita aestivalisBagian sumber: ColDP NameUsage.tsv ID CDZ6; accepted species; source 2073
    Tanggal penghimpunan sumber: 2026-10-12
  3. [3] Dokumentasi visual — Amanita aestivalisBagian sumber: Individual media record; identification follows the source, not independent determination
    Tanggal penghimpunan sumber: 2026-10-12
    Media sumber: CC0 1.0 · no rights reserved, uploaded by Garrett Taylor

Adaptasi teks: CC BY-SA 4.0. Wikipedia contributors — Amanita aestivalis — Wikipedia (en)

Uraian asli dan riwayat sumber

Riwayat atau halaman sumber

Ringkasan sumber

Amanita aestivalis, commonly known as the white American star-footed amanita, is a species of fungus in the mushroom family Amanitaceae. The cap of the white fruit body is 5 to 8.5 cm in diameter. It sits atop a stem that is 8.5 to 16 cm long. The entire fruit body will slowly stain a reddish-brown color in response to bruising. A. aestivalis may be a synonym for A. brunnescens, and may be confused with several other white-bodied amanitas. The fungus is distributed in eastern North America.

Revisi sumber

Morfologi sumber

The cap of the fruit body is 5 to 8.5 cm in diameter, and depending on its age, may range from egg-shaped to convex to somewhat flattened. Older specimens may have edges that are curved upwards. The color is white or pale tan in the center of the cap; older specimens may have areas of discolored tissue colored brownish-red shades. Sometimes, the edge of the cap has radial grooves—up to 4 mm long—that mirror the position of the underlying gills. When moist, the cap is sticky to the touch; when dry, it is shiny, usually without any remnants of the thin volva. The white gills are crowded close together, and are free from attachment to the stem. They are subventricose: slightly swollen in the middle, and tapering near the ends. The stem is 8.5 to 16 cm long by 0.9 to 1.6 cm thick, and slightly thicker at the base than at the top. It is stuffed with whitish hyphae that resemble cotton. The surface of the stem is smooth or has delicate tufts of soft, white, woolly hairs. There is a rimmed bulb at the base of the stem, which can reach a diameter of over 3 cm. The ring—located on the upper portion of the stem, 1.2 - 1.7 cm from the top—is white, membranous, and long-lasting. The volva remains closely attached to the bulb, although a portion may stretch out like a thin membrane and adhere to the base of the stem before collapsing. The flesh will slowly turn pinkish-brown to chocolate-brown when it has been injured or bruised. Young specimens do not have any distinct odor, but fruit bodies may smell slightly of onions or garlic in age. Viewed in deposit, like with a spore print, the basidiospores of A. aestivalis are white.

Revisi sumber

Ekologi sumber

Fruit bodies typically appear from late June until autumn. In North America, it has been found in the states of New England, as well as Alabama, New York, and Virginia. The distribution extends north to the southeastern provinces of Canada and south to Florida. Fruit bodies of the fungus grow on the ground in deciduous, coniferous, and mixed forests. A preference has been noted for oak woods containing Tsuga or Pinus species, as well as beech wood with Picea, Abies, and Betula. A. aestivalis is a mycorrhizal species, meaning it forms a mutualistic relationship in which the vegetative hyphae of the fungus grow around and enclose the tiny roots of trees and shrubs. In this way, the plant is better able to absorb phosphorus and other soil nutrients, while the fungus receives moisture, protection, and nutritive byproducts of the plant's metabolism.

Revisi sumber

Struktur reproduksi sumber

Viewed in deposit, like with a spore print, the basidiospores of A. aestivalis are white. Examination with a microscope reveals further details: they are roughly spherical, hyaline (translucent) and thin-walled, with dimensions of 7.8–8.8 μm. The spores are amyloid, meaning that they will absorb iodine when stained with Melzer's reagent and appear blue to blackish-blue. The spore-bearing cells, the basidia, are four-spored, thin-walled, and measure 32–60 long by 4–13 μm thick. There are no clamps present at the bases of the basidia.

Revisi sumber

Rujukan halaman ini

Fungi. Amanita aestivalis. Rilis data fungi-2026-10-12-expansion-2. https://fungi-atlas.mgadib.chatgpt.site/jamur/amanita-aestivalis/.

Status: impor sumber; pemeriksaan editorial per profil belum selesai. Untuk klaim biologis, gunakan rujukan pada bagian terkait dan periksa konteks sumber aslinya.