Collection 1000090 (herbarium acc. no. NYS-F-002278) is the holotype of Hebeloma pascuense.


  • arrow_drop_downarrow_drop_upCollecting details

    Collection 1000090 was collected by C.H. Peck on 18th October 1899 in Johnson County, Warrensburg, New York, UNITED STATES (approx. 43.49°N, 73.77°W, altitude approximately 220 m above sea level - Google maps). No ectomycorrhizal plants were recorded.

    The surrounding habitat was described as pastureland with a substrate of stony 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. 14.2: Pastureland.

    According to the GPS data the collection was in the New England-Acadian 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: yes.

    Pileus: 25–50 mm diameter; shape convex; margin characters not recorded; viscosity tacky when moist; spotting not recorded; hygrophanous not recorded; colour variation two-colour; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil yes.

    Lamellae: attachment adnexed; maximum depth not recorded; number of complete lamellae 44; tears not recorded; white fimbriate edge not recorded.

    Stipe: 25–50 x 5–7 {median} x 5–7 {basal} mm; stipe Q 5.0–6.7; base cylindrical; floccosity fibrillose, pruinose at apex; rooting not recorded; mycelial chords not recorded.

    Context: texture firm; stipe interior stuffed; stipe flesh discolouring from base not recorded; slenderness measure 5.8; smell raphanoid weakly; taste mild.

    Spore deposit colour: analysis not yet complete.

    Exsiccata: analysis not yet complete.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape ellipsoid; colour through microscope yellow; guttulate yes; papillate no; Spore Code: O1; P0; D0.

    Basidia: 21.2–26.6 x 6.4–8.9 μm; ave. Q = 3.0; basidia spore nature not recorded.

    Cheilocystidia: main shape lageniform, ventricose; special features septa; Cheilocystidia Ratios: A/M = 1.20; A/B = 0.70; B/M = 1.79.

    Pleurocystidia: no.

    Ixocutis: epicutis thickness (measured from exsiccata) 65 μm; ixocutis maximum hyphae width 6 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis cylindrical, ellipsoid, oblong, thickly sausage-shaped up to 14 μm wide.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(7.8) 8.3–10.4 (10.8)
    Width (µm)(4.9) 5.1–6.0 (6.1)
    Q(1.55) 1.58–1.87 (1.94)1.711.710.09

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(31) 34–50 (52)43435.79
    Apex Width(0.8) 4.0–6.8 (8.0)
    Median Width(3.7) 3.8–5.9 (6.4)
    Basal Width(5.9) 6.2–10.7 (11.6)
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1899)--- °C--- °C--- mm
    Collection month (10/1899)--- °C--- °C--- mm
    Max month (1899)--- °C--- °C--- 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 46.0 90.50 2nd/2
Average length 9.5 9.70 2nd/2
Average width 5.5 5.75 2nd/2
Standard deviation of length 0.66 0.69 2nd/2
Standard deviation of width 0.28 0.35 2nd/2
Median length 9.6 9.80 2nd/2
Median width 5.6 5.75 2nd/2
Minimum length 7.8 8.10 2nd/2
Minimum width 4.9 5.00 2nd/2
Low length 8.3 8.50 2nd/2
Low width 5.1 5.25 2nd/2
High length 10.4 10.75 2nd/2
High width 6.0 6.40 2nd/2
Max length 10.8 11.25 2nd/2
Max width 6.1 6.75 2nd/2
Spore featureValueCommonalities
Ornamentation O1 100% of collections
Perispore loosening P0 100% of collections
Dextrinoidity D0 100% of collections