Sutorius eximius

Ciri dan struktur

Fruit bodies have caps that are initially convex, later becoming broadly convex to more or less flat, with a diameter of 5 – 12 cm. The cap surface is dry to slightly sticky, with a texture ranging from smooth to somewhat felt-like. Its color is purplish brown to grayish brown to reddish brown; young specimens are often covered with a fine whitish bloom (a delicate, powdery coating). The flesh is whitish, and slowly stains gray-brown when it is cut or injured. It has no distinctive odor, and a mild to slightly bitter taste. On the cap underside, the pore surface is dark chocolate brown to purple brown, and stains dark brown where bruised. The nearly circular pores number up to 3 per millimeter, and the tubes are 0.9 – 2.2 cm deep. The solid stipe measures 4.5 – 9 cm long by 1 – 4 cm thick. Its color is similar to that of the cap, and it has a scurfy surface from a dense coating of purplish to purple-brown scabers. The lilac-brown bolete produces a pinkish to reddish-brown to amber-brown spore print. The smooth, translucent spores are narrowly spindle shaped and measure 11–17 by 3.5–5 μm. Collections made in Costa Rica have shorter spores (10.5–13.3 μm) and smaller fruitbodies than eastern North American material; Guyanese material also has smaller spores, measuring 9.7–12 μm. These differences are attributed to clinal variation. The basidia (spore-bearing cells) are club shaped, four-spored, and measure 23–30 by 7–8 μm. The cystidia on the pore edges (cheilocystidia) are narrowly spindle-shaped (fusoid), measuring 20–30 by 7–8 μm. Cystidia on the pore surface (pleurocystidia) are thin-walled, fusoid to swollen (ventricose), with dimensions of 27–42 by 8–12 μm.

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Rujukan: [1]

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Habitat dan peran ekologis

Fruit bodies of Sutorius eximius grow in the soil singly or scattered among leaf litter. A mycorrhizal species, the bolete has been recorded growing in association with plants from various genera, including Dicymbe, Dipterocarpus, Fagus, Hopea, Quercus, Shorea, and Tsuga. The species has been recorded from North America (in the east from June to September), Costa Rica, and Indonesia. In Costa Rica, where it usually associates with the endemic oaks Quercus seemannii and Q. copeyensis, the lilac-brown bolete can be locally abundant in the Cordillera Central and the Cordillera de Talamanca. Additional locations with collections that have not been confirmed by DNA analysis include Guyana, Japan, China. Although S. eximius has been reported from Thailand, molecular analysis of Thai collections suggests that they represent a distinct, as-yet unnamed species.

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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 lilac-brown bolete produces a pinkish to reddish-brown to amber-brown spore print. The smooth, translucent spores are narrowly spindle shaped and measure 11–17 by 3.5–5 μm. Collections made in Costa Rica have shorter spores (10.5–13.3 μm) and smaller fruitbodies than eastern North American material; Guyanese material also has smaller spores, measuring 9.7–12 μm. These differences are attributed to clinal variation. The basidia (spore-bearing cells) are club shaped, four-spored, and measure 23–30 by 7–8 μm. The cystidia on the pore edges (cheilocystidia) are narrowly spindle-shaped (fusoid), measuring 20–30 by 7–8 μm. Cystidia on the pore surface (pleurocystidia) are thin-walled, fusoid to swollen (ventricose), with dimensions of 27–42 by 8–12 μm.

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.
• 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 Sutorius eximius 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

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

Sumber profil

1. [1] Sutorius eximius — Wikipedia (en)Bagian sumber: Frozen revision 1374535109
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY-SA4.0 · Wikipedia contributors
2. [2] Catalogue of Life Base2026-09-11 — Sutorius eximiusBagian sumber: ColDP NameUsage.tsv ID 7B5P4; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Sutorius eximiusBagian sumber: Individual media record; identification follows the source, not independent determination
   Tanggal penghimpunan sumber: 2026-10-12
   Media sumber: CC BY 4.0 · (c) Alan Rockefeller, some rights reserved (CC BY), uploaded by Alan Rockefeller