Collection 1000021 (herbarium acc. no. GLM GL11251) is the holotype of Hebeloma fusisporum.


  • arrow_drop_downarrow_drop_upCollecting details

    Collection 1000021 was collected by G. Zschieschang, det: F. Gröger on 25th September 1976 in Bleichteiche, Herrnhut, Free State of Saxony, GERMANY (approx. 51.0171°N, 14.7313°E, altitude approximately 330 m above sea level - Google maps). The ectomycorrhizal families Betulaceae (genus Alnus) and Salicaceae (genus Salix) were present.

    The surrounding habitat was described as willow thicket with a substrate of boggy soil, corresponding to the IUCN habitat We map from the collector's description of the habitat to the International Union for Conservation of Nature (IUCN)'s definition using a standardised set of rules. Please see this page for a full list of IUCN habitats. 5.3: Wetlands (inland) – Shrub dominated wetlands.

    According to the GPS data the collection was in the Western European broadleaf forests WWF ecoregion The World Wildlife Fund (WWF) have divided the world into 867 terrestrial ecoregions. The ecoregion here is estimated by mapping from the GPS coordinates of the collection using data made available by Dinerstein et al (2017). Use this webtool to explore the ecoregions visually or see a full list of current ecoregions on Wikipedia. (biome: Temperate Broadleaf & Mixed Forests) and Koppen climate code Dfb (Cold, no dry season, warm summer).

  • arrow_drop_downarrow_drop_upMacroscopic description

    Cortina present: no.

    Pileus: 12–22 mm diameter; shape convex, umbonate weakly; margin characters involute; viscosity tacky when moist; spotting yes; hygrophanous not recorded; colour variation unicolor; with colour at centre pale cream, pale yellow; and colour at margin not recorded; with remains of universal veil no.

    Lamellae: attachment adnate, adnexed, emarginate; maximum depth up to 4 mm; number of complete lamellae 40; tears absent; white fimbriate edge present.

    Stipe: 22–45 x 2–4 {median} x 2–4 {basal} mm; stipe Q 10.0–11.0; base cylindrical, tapering; floccosity fibrillose; rooting no; mycelial chords not recorded.

    Context: texture firm; stipe interior hollow, stuffed; stipe flesh discolouring from base yes; slenderness measure 20.3; smell sacchariolentia, sweet; taste bitter weakly.

    Spore deposit colour: analysis not yet complete.

    Exsiccata: dark, hard, lamellae blackening, stipe blackening.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape amygdaloid, fusoid; colour through microscope not recorded; guttulate not recorded; papillate weak; Spore Code: O3; P2; P3; D3.

    Basidia: 34.3–36.8 x 7.4–8.1 μm; ave. Q = 4.6; basidia spore nature not recorded.

    Cheilocystidia: main shape gently clavate, cylindrical; special features irregular, many collapsed in exsiccata; Cheilocystidia Ratios: A/M = 1.46; A/B = 1.69; B/M = 0.94.

    Pleurocystidia: no.

    Ixocutis: epicutis thickness (measured from exsiccata) 40 μm; ixocutis maximum hyphae width 5 μm; ixocutis hyphae encrustation no; shape of trama elements beneath subcutis ellipsoid, thickly sausage-shaped up to 20 μm wide.

    Caulocystidia: caulocystidia maximum length 60 μm.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(12.1) 13.3–15.8 (16.3)14.614.60.820
    Width (µm)(6.2) 6.4–
    Q(1.68) 1.87–2.42 (2.50)

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(51) 52–72 (75)62617.48
    Apex Width(4.3) 5.6–10.1 (11.3)
    Median Width(4.6) 4.7–7.1 (8.9)
    Basal Width(2.6) 3.0–7.7 (8.2)
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1976)11.71 °C3.52 °C57.67 mm
    Collection month (9/1976)16.90 °C8.08 °C55.36 mm
    Max month (1976)24.87 °C12.95 °C131.54 mm

Compare this collection to its species

This section compares data for this collection against its true species and also against the most likely species as determined by our identifier. More often than not these will be the same species, but where this is not the case, the data may be used to help explain why the identifier got it wrong.

Image gallery

Detailed statistics

Spore measurementsMy valueSpecies mean valuePosition
Count 50.0 37.29 7th–10th/21
Average length 14.6 13.25 1st–2nd/21
Average width 7.0 6.67 1st–5th/21
Standard deviation of length 0.82 0.80 11th–12th/21
Standard deviation of width 0.32 0.37 12th–14th/21
Median length 14.6 13.23 1st/21
Median width 7.1 6.70 1st–3rd/21
Minimum length 12.1 11.59 4th–6th/21
Minimum width 6.2 5.94 1st–7th/21
Low length 13.3 12.10 3rd/21
Low width 6.4 6.15 1st–5th/21
High length 15.8 14.42 2nd/21
High width 7.4 7.19 9th–10th/21
Max length 16.3 14.91 4th/21
Max width 7.4 7.32 10th–11th/21
Spore featureValueCommonalities
Ornamentation O3 100% of collections
Perispore loosening P2; P3 71% of collections; 61% of collections
Dextrinoidity D3 61% of collections