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Taxonomy

Collection 1000286 (herbarium acc. no. NY 814864) is Hebeloma sordidulum. It is the holotype of heterotypic synonym Hebeloma earlei Murrill (1917).

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 1000286 was collected by F.S. Earle (FSE51), det: W.A. Murrill on 12th November 1901 in Bronx Co., New York Botanical Garden, New York, UNITED STATES (approx. 40.8621°N, 73.8769°W, altitude approximately 750 m above sea level - Google maps). The ectomycorrhizal family Fagaceae (genus Fagus) was present.

    The surrounding habitat was described as not recorded with a substrate of 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: 30–40 mm diameter; shape convex; margin characters smooth; viscosity tacky when moist; spotting not recorded; hygrophanous not recorded; colour variation not recorded; with colour at centre yellowish brown; 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: 30–40 x 3–5 {median} x 3–5 {basal} mm; stipe Q 8.0–10.0; base cylindrical; floccosity 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 9.0; smell not recorded; taste mild.

    Spore deposit colour: analysis not yet complete.

    Exsiccata: analysis not yet complete.

  • arrow_drop_downarrow_drop_upMicroscopic description

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

    Basidia: 27.6–33.7 x 8.0–9.5 μm; ave. Q = 3.3; basidia spore nature not recorded.

    Cheilocystidia: main shape clavate-lageniform or clavate-ventricose; special features apical thickening, median thickening; Cheilocystidia Ratios: A/M = 1.87; A/B = 1.23; B/M = 1.57.

    Pleurocystidia: no.

    Ixocutis: epicutis thickness (measured from exsiccata) 150 μm; ixocutis maximum hyphae width 6 μm; ixocutis hyphae encrustation not recorded; shape of trama elements beneath subcutis ovate, thickly sausage-shaped up to 20 μm wide.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(9.9) 10.1–12.2 (12.8)11.010.90.630
    Width (µm)(5.7) 5.8–6.96.46.40.320
    Q(1.54) 1.57–1.85 (1.88)1.701.700.08

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length33–48 (49)42424.66
    Apex Width(4.6) 5.9–10.1 (13.6)7.67.51.410
    Median Width3.0–5.2 (5.6)4.34.30.76
    Basal Width(4.2) 4.5–8.0 (8.3)6.66.71.22
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1901)--- °C--- °C--- mm
    Collection month (11/1901)--- °C--- °C--- mm
    Max month (1901)--- °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 56.0 58.85 21st–22nd/47
Average length 11.0 11.68 42nd–46th/47
Average width 6.4 6.31 15th–22nd/47
Standard deviation of length 0.63 0.79 37th–39th/47
Standard deviation of width 0.32 0.37 33rd–34th/47
Median length 10.9 11.67 41st–44th/47
Median width 6.4 6.32 17th–22nd/47
Minimum length 9.9 9.97 29th–31st/47
Minimum width 5.7 5.42 11th–16th/47
Low length 10.1 10.47 37th–42nd/47
Low width 5.8 5.76 19th–24th/47
High length 12.2 12.91 40th–41st/47
High width 6.9 6.88 16th–28th/47
Max length 12.8 13.47 39th–41st/47
Max width 6.9 7.12 32nd–39th/47
Spore featureValueCommonalities
Ornamentation O2; O3 48% of collections; 82% of collections
Perispore loosening P1 93% of collections
Dextrinoidity D2 100% of collections