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Taxonomy

Collection 1000258 (herbarium acc. no. NYS-F-002840) is the holotype of Hebeloma sordidulum.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 1000258 was collected by C.H. Peck in October 1885 in Albany, Karner, New York, UNITED STATES (approx. 42.7234°N, 73.8573°W, altitude approximately 100 m above sea level - Google maps). No ectomycorrhizal plants were recorded.

    The surrounding habitat was described as not recorded with a substrate of sandy soil.

    According to the GPS data the collection was in the Northeast US Coastal 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 Dfa (Cold, no dry season, hot summer).

  • arrow_drop_downarrow_drop_upMacroscopic description

    Cortina present: no.

    Pileus: up to 30 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 not recorded.

    Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 60; tears not recorded; white fimbriate edge weak.

    Stipe: 25 x 4 {median} x 4 {basal} mm; stipe Q 6.3; base cylindrical; floccosity fibrillose, pruinose at apex; rooting not recorded; mycelial chords not recorded.

    Context: texture firm; stipe interior hollow, stuffed; stipe flesh discolouring from base not recorded; slenderness measure 5.2; smell not recorded; taste not recorded.

    Spore deposit colour: analysis not yet complete.

    Exsiccata: analysis not yet complete.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape amygdaloid, limoniform; colour through microscope brown; guttulate not recorded; papillate very strongly; Spore Code: O2; O3; P1; P2; D2; D3.

    Basidia: 25.7–29.2 x 6.8–8.1 μm; ave. Q = 3.7; basidia spore nature not recorded.

    Cheilocystidia: main shape gently clavate, clavate-lageniform or clavate-ventricose; special features many collapsed in exsiccata, median thickening; Cheilocystidia Ratios: A/M = 1.81; A/B = 1.24; B/M = 1.48.

    Pleurocystidia: no.

    Ixocutis: epicutis thickness (measured from exsiccata) 90 μm; ixocutis maximum hyphae width 7 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis thickly sausage-shaped, thinly sausage-shaped up to 12 μm wide.

    Caulocystidia: caulocystidia maximum length 80 μm.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(10.2) 10.6–13.5 (15.2)12.012.00.950
    Width (µm)(5.6) 5.7–6.8 (7.5)6.36.30.350
    Q(1.54) 1.63–2.11 (2.12)1.921.920.13

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(36) 39–58 (59)47486.59
    Apex Width(5.3) 5.8–9.5 (10.0)7.67.51.110
    Median Width(3.0) 3.2–4.7 (5.0)4.03.90.53
    Basal Width4.6–6.9 (7.2)5.96.10.76
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1885)--- °C--- °C--- mm
    Collection month (10/1885)--- °C--- °C--- mm
    Max month (1885)--- °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 70.0 58.85 14th/47
Average length 12.0 11.68 11th–14th/47
Average width 6.3 6.31 23rd–27th/47
Standard deviation of length 0.95 0.79 11th–12th/47
Standard deviation of width 0.35 0.37 25th–27th/47
Median length 12.0 11.67 14th/47
Median width 6.3 6.32 23rd–28th/47
Minimum length 10.2 9.97 11th–16th/47
Minimum width 5.6 5.42 17th–21st/47
Low length 10.6 10.47 17th–18th/47
Low width 5.7 5.76 25th–30th/47
High length 13.5 12.91 9th–11th/47
High width 6.8 6.88 29th–35th/47
Max length 15.2 13.47 2nd/47
Max width 7.5 7.12 5th–10th/47
Spore featureValueCommonalities
Ornamentation O2; O3 48% of collections; 82% of collections
Perispore loosening P1; P2 93% of collections; 27% of collections
Dextrinoidity D2; D3 100% of collections; 48% of collections