Hebeloma colvinii

Ciri dan struktur

Cap 2.5–7.5 cm, convex to irregularly gibbous, sometimes broadly umbonate, with incurved later straight, opaque margin, occasionally appendiculate, dry and dull, unicolored mainly sepia, sometimes with light grayish adpressed covering. Lamellae almost free to emarginate gray (olive) brown, edge entire, slightly tomentose, number of lamellae {L} 45–58. Stem whitish pale fibrillose, sordid gray-brown, often more or less buried in sand with a sand bulb around the base, cortina pale. Context initially fairly thick, with cavity, firm watery grayish in pileus, pale brownish in stipe to near buff, towards base dark, sordid brown. Smell weakly and indistinctly raphanoid. Taste similar, mild. Spore deposit color not recorded. Spores ellipsoid, often ovoid or amygdaloid on ave. 12.0‒14.5 × 7.5‒8.5 µm, ave. Q 1.5‒1.9, very weakly ornamented (O1 O2), perispore not noticeably loosening (P0), indistinctly dextrinoid (D0 D1), yellow brown, ± guttulate, not papillate. Basidia 26‒42 × 7‒11 µm, ave. Q = 3.0‒4.2, mostly four-spored. Cheilocystidia lageniform to ventricose, occasionally cylindrical or clavate-ventricose, occasionally with a characteristic wall thickening, apically, basically, sometimes septate, on ave. 40‒50 × 5.5‒8 (apex) × 5‒9 (middle) × 10‒13 (base) µm, ratios A/M = 0.90‒1.26, A/B = 0.46‒0.77, B/M = 1.40‒2.45. Epicutis an ixocutis, up to 120 µm thick (measured from exsiccata), maximum hyphae width 10 µm, sometimes encrusted, shape of trama elements beneath subcutis sausage-shaped, cylindrical or ellipsoid. Caulocystidia similar to cheilocystidia, but usually less ventricose, up to 130 µm long.

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Rujukan: [1]

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Habitat dan peran ekologis

Known from a few collections from three localities in southwestern Greenland. H. colvinii was described by Peck (1875; effectively published 1876) from West Albany in North America. He found it in drifting sand in West Albany near Albany, N.Y. State. Later Kauffman (1918) reported this or a very similar species from New Richmond in Michigan, as did Ritchie (1946) from Lewes, Delaware Bay. Neither of these two collections has been examined as part of this study. Five collections, all with Salix glauca in pure sand along a river. In one of the localities, Sandflugtsdalen (“valley of driftsand”) at Kangerlussuaq, it was very common and scattered over a large area. The sand is mineral-rich due to mixing with loess.

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Rujukan: [1]

Habitat atau konteks temuan

Informasi belum tersedia pada sumber rilis ini.

Substrat

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Peran atau konteks

Belum dikategorikan pada rilis ini.

Reproduksi

Cap 2.5–7.5 cm, convex to irregularly gibbous, sometimes broadly umbonate, with incurved later straight, opaque margin, occasionally appendiculate, dry and dull, unicolored mainly sepia, sometimes with light grayish adpressed covering. Lamellae almost free to emarginate gray (olive) brown, edge entire, slightly tomentose, number of lamellae {L} 45–58. Stem whitish pale fibrillose, sordid gray-brown, often more or less buried in sand with a sand bulb around the base, cortina pale. Context initially fairly thick, with cavity, firm watery grayish in pileus, pale brownish in stipe to near buff, towards base dark, sordid brown. Smell weakly and indistinctly raphanoid. Taste similar, mild. Spore deposit color not recorded.

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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.
• 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

Hebeloma colvinii A HK16.005, photograph H. Knudsen B distribution of cited collections; C spores ×1600 and D cheilocystidia ×1000 of HK16.005 in Melzer’s reagent. Scale bars: 5 µm; microphotographs H.K.J. Beker.

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.

Sumber profil

1. [1] A survey of Hebeloma (Hymenogastraceae) in Greenland — Hebeloma colviniiBagian sumber: PMC8076164_section_36
   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 colviniiBagian sumber: ColDP NameUsage.tsv ID 6LGZM; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Hebeloma colviniiBagian sumber: Individual media record; identification follows the source, not independent determination
   Tanggal penghimpunan sumber: 2026-10-12
   Media sumber: CC BY 4.0 · Ursula Eberhardt, Henry J. Beker, Torbjørn Borgen, Henning Knudsen, Nicole Schütz, Steen A. Elborne